<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
    targetNamespace="schema:Pos_080101_head_elements_of_substitution_groups_003"
    xmlns:ns="schema:Pos_080101_head_elements_of_substitution_groups_003">
	<!-- THE HEAD ELEMENT -->
	<element name="headNoSubstition" type="string" block="#all"/>
	<element name="groupMember1" type="string" substitutionGroup="ns:headNoSubstition"/>
	<element name="groupMember2" type="string" substitutionGroup="ns:headNoSubstition"/>
	<!-- TOP LEVEL ELEMENT TO DEMONSTRATE SUBSTITUTION -->
	<element name="ize">
		<complexType>
			<sequence>
				<element ref="ns:headNoSubstition" minOccurs="0" maxOccurs="unbounded"/>
			</sequence>
        </complexType>
    </element>
</schema>
