<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<xsd:element name="root">
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref="t" maxOccurs="unbounded"/>
			</xsd:sequence>
		</xsd:complexType>
		<xsd:keyref name="tablekr2" refer="tablekr">
			<xsd:selector xpath=".//t"/>
			<xsd:field xpath="r"/>
		</xsd:keyref>
		<xsd:keyref name="tablekr" refer="tablekr2">
			<xsd:selector xpath=".//t/c"/>
			<xsd:field xpath="@val2"/>
		</xsd:keyref>
	</xsd:element>
	<xsd:element name="t" type="tabletype"/>
	<xsd:complexType name="tabletype">
		<xsd:sequence>
			<xsd:element name="c" type="ctype2"/>
			<xsd:element name="r" type="xsd:string"/>
		</xsd:sequence>
	</xsd:complexType>
	<xsd:complexType name="ctype" mixed="true">
		<xsd:attribute name="val" type="xsd:string"/>
	</xsd:complexType>
	<xsd:complexType name="ctype2" mixed="true">
		<xsd:complexContent>
			<xsd:extension base="ctype">
				<xsd:attribute name="val2" type="xsd:string"/>
			</xsd:extension>
		</xsd:complexContent>
	</xsd:complexType>
</xsd:schema>
