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tao
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<?xml version="1.0" encoding="UTF-8"?>
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<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1.2">
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<annotation>
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<appinfo source="urn:opengis:specification:gml:schema-xsd:temporalTopology:3.1.1"/>
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<documentation xml:lang="en">The temporal topology schema for ISO19136 provides constructs for handling topological complexes and
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temporal feature relationships.
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Temporal geometric characteristics of features are represented as instants and periods.
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While, temporal context of features that does not relate to the position of time is described as connectivity relationships
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among instants and periods. These relationships are called temporal topology as they do not change in time,
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as long as the direction of time does not change.
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It is used effectively in the case of describing a family tree expressing evolution of species, an ecological cycle,
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a lineage of lands or buildings, or a history of separation and merger of administrative boundaries.
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This schema reflects a partial yet consistent implementation of the model described in ISO 19108:2002.
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GML is an OGC Standard.
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Copyright (c) 2001,2005,2010 Open Geospatial Consortium.
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To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
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</documentation>
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</annotation>
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<!-- ===================================== -->
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<include schemaLocation="gml.xsd"/>
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<include schemaLocation="temporal.xsd"/>
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<!-- ===================================== -->
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<!-- ================================================================== -->
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<!-- == TimeTopologyComplex == -->
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<!-- ================================================================== -->
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<element name="TimeTopologyComplex" type="gml:TimeTopologyComplexType" substitutionGroup="gml:_TimeComplex">
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<annotation>
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<documentation xml:lang="en">This element represents temporal topology complex. It shall be the connected acyclic directed graph composed of time nodes and time edges.</documentation>
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</annotation>
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</element>
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<!-- ================================================================== -->
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<complexType name="TimeTopologyComplexType">
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<annotation>
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<documentation xml:lang="en">A temporal topology complex.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractTimeComplexType">
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<sequence>
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<element name="primitive" type="gml:TimeTopologyPrimitivePropertyType" maxOccurs="unbounded"/>
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</sequence>
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</extension>
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</complexContent>
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</complexType>
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<!-- ================================================================== -->
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<complexType name="TimeTopologyComplexPropertyType">
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<annotation>
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<documentation>A time topology complex property can either be any time topology complex element
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encapsulated in an element of this type or an XLink reference to a remote time topology complex element
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(where remote includes elements located elsewhere in the same document).
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Note that either the reference or the contained element must be given, but not both or none.</documentation>
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</annotation>
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<sequence minOccurs="0">
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<element ref="gml:TimeTopologyComplex"/>
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</sequence>
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<attributeGroup ref="gml:AssociationAttributeGroup"/>
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</complexType>
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<!-- ================================================================== -->
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<!-- == TimeTopologyPrimitive == -->
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<!-- ================================================================== -->
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<element name="_TimeTopologyPrimitive" type="gml:AbstractTimeTopologyPrimitiveType" abstract="true" substitutionGroup="gml:_TimePrimitive">
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<annotation>
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<documentation xml:lang="en">This abstract element acts as the head of the substitution group for temporal topology primitives.</documentation>
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</annotation>
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</element>
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<!-- ================================================================== -->
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<complexType name="AbstractTimeTopologyPrimitiveType" abstract="true">
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<annotation>
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<documentation xml:lang="en">The element "complex" carries a reference to the complex containing this primitive.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractTimePrimitiveType">
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<sequence>
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<element name="complex" type="gml:ReferenceType" minOccurs="0"/>
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</sequence>
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</extension>
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</complexContent>
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</complexType>
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<!-- ================================================================== -->
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<complexType name="TimeTopologyPrimitivePropertyType">
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<annotation>
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<documentation>A time topology primitive property can either hold any time topology complex element
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eor carry an XLink reference to a remote time topology complex element
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(where remote includes elements located elsewhere in the same document).
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Note that either the reference or the contained element must be given, but not both or none.</documentation>
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</annotation>
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<sequence minOccurs="0">
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<element ref="gml:_TimeTopologyPrimitive"/>
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</sequence>
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<attributeGroup ref="gml:AssociationAttributeGroup"/>
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</complexType>
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<!-- ================================================================== -->
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<!-- ======= TimeNode ======= -->
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<!-- ================================================================== -->
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<element name="TimeNode" type="gml:TimeNodeType" substitutionGroup="gml:_TimeTopologyPrimitive">
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<annotation>
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<documentation xml:lang="en">"TimeNode" is a zero dimensional temporal topology primitive,
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expresses a position in topological time, and is a start and an end of time edge, which represents states of time.
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Time node may be isolated. However, it cannot describe the ordering relationships with other primitives.
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An isolated node may not be an element of any temporal topology complex.</documentation>
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</annotation>
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</element>
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<!-- ================================================================== -->
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<complexType name="TimeNodeType">
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<annotation>
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<documentation xml:lang="en">Type declaration of the element "TimeNode".</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractTimeTopologyPrimitiveType">
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<sequence>
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<element name="previousEdge" type="gml:TimeEdgePropertyType" minOccurs="0" maxOccurs="unbounded"/>
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<element name="nextEdge" type="gml:TimeEdgePropertyType" minOccurs="0" maxOccurs="unbounded"/>
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<element name="position" type="gml:TimeInstantPropertyType" minOccurs="0"/>
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</sequence>
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</extension>
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</complexContent>
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</complexType>
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<!-- ================================================================== -->
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<complexType name="TimeNodePropertyType">
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<annotation>
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<documentation>A time node property can either be any time node element encapsulated in an element of this type
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or an XLink reference to a remote time node element (where remote includes elements located elsewhere in the same document).
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Note that either the reference or the contained element must be given, but not both or none.</documentation>
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</annotation>
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<sequence minOccurs="0">
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<element ref="gml:TimeNode"/>
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</sequence>
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<attributeGroup ref="gml:AssociationAttributeGroup"/>
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</complexType>
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<!-- ================================================================== -->
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<!-- ======= TimeEdge ======= -->
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<!-- ================================================================== -->
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<element name="TimeEdge" type="gml:TimeEdgeType" substitutionGroup="gml:_TimeTopologyPrimitive">
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<annotation>
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<documentation xml:lang="en">TimeEdge is one dimensional temporal topology primitive,
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expresses a state in topological time. It has an orientation from its start toward the end,
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and its boundaries shall associate with two different time nodes.</documentation>
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</annotation>
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</element>
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<!-- ================================================================== -->
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<complexType name="TimeEdgeType">
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<annotation>
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<documentation xml:lang="en">Type declaration of the element "TimeEdge".</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractTimeTopologyPrimitiveType">
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<sequence>
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<element name="start" type="gml:TimeNodePropertyType"/>
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<element name="end" type="gml:TimeNodePropertyType"/>
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<element name="extent" type="gml:TimePeriodPropertyType" minOccurs="0"/>
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</sequence>
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</extension>
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</complexContent>
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</complexType>
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<!-- ================================================================== -->
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<complexType name="TimeEdgePropertyType">
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<annotation>
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<documentation>A time edge property can either be any time edge element encapsulated in an element of this type
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or an XLink reference to a remote time edge element (where remote includes elements located elsewhere in the same document).
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Note that either the reference or the contained element must be given, but not both or none.</documentation>
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</annotation>
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<sequence minOccurs="0">
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<element ref="gml:TimeEdge"/>
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</sequence>
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<attributeGroup ref="gml:AssociationAttributeGroup"/>
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</complexType>
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<!-- ================================================================== -->
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<!-- === Succession === -->
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<!-- ================================================================== -->
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<simpleType name="SuccessionType">
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<annotation>
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<documentation>Feature succession is a semantic relationship derived from evaluation of observer, and
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Feature Substitution, Feature Division and Feature Fusion are defined as associations between
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previous features and next features in the temporal context.
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Successions shall be represented in either following two ways.
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* define a temporal topological complex element as a feature element
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* define an association same as temporal topological complex between features.</documentation>
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</annotation>
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<restriction base="string">
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<enumeration value="substitution"/>
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<enumeration value="division"/>
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<enumeration value="fusion"/>
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<enumeration value="initiation"/>
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</restriction>
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</simpleType>
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<!-- ================================================================== -->
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</schema>
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