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<?xml version='1.0' encoding='UTF-8'?>
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.w3.org/1999/xlink" xmlns:xlink="http://www.w3.org/1999/xlink">
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<xs:annotation>
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<xs:documentation>This schema document provides attribute declarations and
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attribute group, complex type and simple type definitions which can be used in
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the construction of user schemas to define the structure of particular linking
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constructs, e.g.
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<![CDATA[
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
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xmlns:xl="http://www.w3.org/1999/xlink">
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<xs:import namespace="http://www.w3.org/1999/xlink"
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location="http://www.w3.org/1999/xlink.xsd">
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<xs:element name="mySimple">
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<xs:complexType>
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...
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<xs:attributeGroup ref="xl:simpleAttrs"/>
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...
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</xs:complexType>
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</xs:element>
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...
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</xs:schema>]]></xs:documentation>
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</xs:annotation>
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<xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/>
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<xs:attribute name="type" type="xlink:typeType"/>
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<xs:simpleType name="typeType">
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<xs:restriction base="xs:token">
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<xs:enumeration value="simple"/>
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<xs:enumeration value="extended"/>
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<xs:enumeration value="title"/>
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<xs:enumeration value="resource"/>
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<xs:enumeration value="locator"/>
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<xs:enumeration value="arc"/>
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</xs:restriction>
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</xs:simpleType>
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<xs:attribute name="href" type="xlink:hrefType"/>
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<xs:simpleType name="hrefType">
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<xs:restriction base="xs:anyURI"/>
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</xs:simpleType>
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<xs:attribute name="role" type="xlink:roleType"/>
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<xs:simpleType name="roleType">
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<xs:restriction base="xs:anyURI">
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<xs:minLength value="1"/>
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</xs:restriction>
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</xs:simpleType>
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<xs:attribute name="arcrole" type="xlink:arcroleType"/>
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<xs:simpleType name="arcroleType">
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<xs:restriction base="xs:anyURI">
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<xs:minLength value="1"/>
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</xs:restriction>
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</xs:simpleType>
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<xs:attribute name="title" type="xlink:titleAttrType"/>
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<xs:simpleType name="titleAttrType">
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<xs:restriction base="xs:string"/>
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</xs:simpleType>
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<xs:attribute name="show" type="xlink:showType"/>
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<xs:simpleType name="showType">
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<xs:restriction base="xs:token">
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<xs:enumeration value="new"/>
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<xs:enumeration value="replace"/>
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<xs:enumeration value="embed"/>
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<xs:enumeration value="other"/>
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<xs:enumeration value="none"/>
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</xs:restriction>
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</xs:simpleType>
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<xs:attribute name="actuate" type="xlink:actuateType"/>
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<xs:simpleType name="actuateType">
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<xs:restriction base="xs:token">
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<xs:enumeration value="onLoad"/>
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<xs:enumeration value="onRequest"/>
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<xs:enumeration value="other"/>
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<xs:enumeration value="none"/>
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</xs:restriction>
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</xs:simpleType>
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<xs:attribute name="label" type="xlink:labelType"/>
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<xs:simpleType name="labelType">
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<xs:restriction base="xs:NCName"/>
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</xs:simpleType>
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<xs:attribute name="from" type="xlink:fromType"/>
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<xs:simpleType name="fromType">
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<xs:restriction base="xs:NCName"/>
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</xs:simpleType>
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<xs:attribute name="to" type="xlink:toType"/>
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<xs:simpleType name="toType">
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<xs:restriction base="xs:NCName"/>
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</xs:simpleType>
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<xs:attributeGroup name="simpleAttrs">
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<xs:attribute ref="xlink:type" fixed="simple"/>
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<xs:attribute ref="xlink:href"/>
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<xs:attribute ref="xlink:role"/>
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<xs:attribute ref="xlink:arcrole"/>
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<xs:attribute ref="xlink:title"/>
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<xs:attribute ref="xlink:show"/>
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<xs:attribute ref="xlink:actuate"/>
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</xs:attributeGroup>
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<xs:group name="simpleModel">
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<xs:sequence>
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<xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
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</xs:sequence>
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</xs:group>
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<xs:complexType mixed="true" name="simple">
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<xs:annotation>
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<xs:documentation>
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Intended for use as the type of user-declared elements to make them
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simple links.
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</xs:documentation>
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</xs:annotation>
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<xs:group ref="xlink:simpleModel"/>
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<xs:attributeGroup ref="xlink:simpleAttrs"/>
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</xs:complexType>
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<xs:attributeGroup name="extendedAttrs">
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<xs:attribute ref="xlink:type" fixed="extended" use="required"/>
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<xs:attribute ref="xlink:role"/>
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<xs:attribute ref="xlink:title"/>
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</xs:attributeGroup>
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<xs:group name="extendedModel">
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<xs:choice>
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<xs:element ref="xlink:title"/>
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<xs:element ref="xlink:resource"/>
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<xs:element ref="xlink:locator"/>
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<xs:element ref="xlink:arc"/>
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</xs:choice>
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</xs:group>
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<xs:complexType name="extended">
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<xs:annotation>
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<xs:documentation>
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Intended for use as the type of user-declared elements to make them
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extended links.
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Note that the elements referenced in the content model are all abstract.
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The intention is that by simply declaring elements with these as their
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substitutionGroup, all the right things will happen.
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</xs:documentation>
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</xs:annotation>
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<xs:group ref="xlink:extendedModel" minOccurs="0" maxOccurs="unbounded"/>
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<xs:attributeGroup ref="xlink:extendedAttrs"/>
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</xs:complexType>
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<xs:element name="title" type="xlink:titleEltType" abstract="true"/>
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<xs:attributeGroup name="titleAttrs">
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<xs:attribute ref="xlink:type" fixed="title" use="required"/>
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<xs:attribute ref="xml:lang">
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<xs:annotation>
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<xs:documentation>
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xml:lang is not required, but provides much of the
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motivation for title elements in addition to attributes, and so
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is provided here for convenience.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:attributeGroup>
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<xs:group name="titleModel">
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<xs:sequence>
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<xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
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</xs:sequence>
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</xs:group>
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<xs:complexType mixed="true" name="titleEltType">
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<xs:group ref="xlink:titleModel"/>
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<xs:attributeGroup ref="xlink:titleAttrs"/>
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</xs:complexType>
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<xs:element name="resource" type="xlink:resourceType" abstract="true"/>
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<xs:attributeGroup name="resourceAttrs">
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<xs:attribute ref="xlink:type" fixed="resource" use="required"/>
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<xs:attribute ref="xlink:role"/>
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<xs:attribute ref="xlink:title"/>
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<xs:attribute ref="xlink:label"/>
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</xs:attributeGroup>
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<xs:group name="resourceModel">
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<xs:sequence>
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<xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
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</xs:sequence>
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</xs:group>
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<xs:complexType mixed="true" name="resourceType">
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<xs:group ref="xlink:resourceModel"/>
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<xs:attributeGroup ref="xlink:resourceAttrs"/>
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</xs:complexType>
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<xs:element name="locator" type="xlink:locatorType" abstract="true"/>
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<xs:attributeGroup name="locatorAttrs">
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<xs:attribute ref="xlink:type" fixed="locator" use="required"/>
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<xs:attribute ref="xlink:href" use="required"/>
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<xs:attribute ref="xlink:role"/>
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<xs:attribute ref="xlink:title"/>
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<xs:attribute ref="xlink:label">
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<xs:annotation>
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<xs:documentation>
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label is not required, but locators have no particular
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XLink function if they are not labeled.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:attributeGroup>
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<xs:group name="locatorModel">
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<xs:sequence>
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<xs:element ref="xlink:title" minOccurs="0" maxOccurs="unbounded"/>
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</xs:sequence>
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</xs:group>
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<xs:complexType name="locatorType">
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<xs:group ref="xlink:locatorModel"/>
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<xs:attributeGroup ref="xlink:locatorAttrs"/>
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</xs:complexType>
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<xs:element name="arc" type="xlink:arcType" abstract="true"/>
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<xs:attributeGroup name="arcAttrs">
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<xs:attribute ref="xlink:type" fixed="arc" use="required"/>
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<xs:attribute ref="xlink:arcrole"/>
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<xs:attribute ref="xlink:title"/>
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<xs:attribute ref="xlink:show"/>
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<xs:attribute ref="xlink:actuate"/>
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<xs:attribute ref="xlink:from"/>
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<xs:attribute ref="xlink:to">
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<xs:annotation>
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<xs:documentation>
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from and to have default behavior when values are missing
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:attributeGroup>
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<xs:group name="arcModel">
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<xs:sequence>
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<xs:element ref="xlink:title" minOccurs="0" maxOccurs="unbounded"/>
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</xs:sequence>
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</xs:group>
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<xs:complexType name="arcType">
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<xs:group ref="xlink:arcModel"/>
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<xs:attributeGroup ref="xlink:arcAttrs"/>
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</xs:complexType>
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</xs:schema>
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