<?xml version="1.0"?>
<!-- Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany -->
<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0" xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns="http://datacite.org/schema/kernel-2.2" ns="http://datacite.org/schema/kernel-2.2" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
	<rng:define name="relationType">
		<a:documentation>
			Description of the relationship of the resource being registered (A) and the related resource (B).
		</a:documentation>
		<rng:choice>
			<rng:value>IsCitedBy</rng:value><!--indicates that B includes A in a citation-->
			<rng:value>Cites</rng:value><!--indicates that A includes B in a citation-->
			<rng:value>IsSupplementTo</rng:value><!--indicates that A is a supplement to B-->
			<rng:value>IsSupplementedBy</rng:value><!--indicates that B is a supplement to A-->
			<rng:value>IsContinuedBy</rng:value><!--indicates A is continued by the work B-->
			<rng:value>Continues</rng:value><!--indicates A is a continuation of the work B-->
			<rng:value>IsNewVersionOf</rng:value><!--indicates B is a new edition of A, where the new edition has been modified or updated-->
			<rng:value>IsPreviousVersionOf</rng:value><!--indicates B is a previous edition of A-->
			<rng:value>IsPartOf</rng:value><!--indicates A is a portion of B-->
			<rng:value>HasPart</rng:value><!--indicates A includes the part B-->
			<rng:value>IsReferencedBy</rng:value><!--indicates A is used as a source of information by B-->
			<rng:value>References</rng:value><!--indicates B is used as a source of information for A-->
			<rng:value>IsDocumentedBy</rng:value><!--indicates B is documentation about/explaining A-->
			<rng:value>Documents</rng:value><!--indicates A is documentation about/explaining B-->
			<rng:value>IsCompiledBy</rng:value><!--indicates B is used to compile or create A-->
			<rng:value>Compiles</rng:value><!--indicates B is the result of a compile or creation event using A-->
			<rng:value>IsVariantFormOf</rng:value><!--indicates B is a variant or different form of A, e.g. calculated or calibrated form or different packaging-->
			<rng:value>IsOriginalFormOf</rng:value><!--indicates B is the original form of A-->
		</rng:choice>
	</rng:define>
</rng:grammar>
