<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:tns="x" elementFormDefault="qualified" targetNamespace="x" xmlns:xs="http://www.w3.org/2001/XMLSchema">

	<xs:complexType name="derivedC">
		<xs:complexContent mixed="false" xmlns:q2="http://www.w3.org/2001/XMLSchema">
			<xs:extension xmlns:q1="x" base="q1:baseC">
				<xs:sequence xmlns:q3="http://www.w3.org/2001/XMLSchema">
					<xs:element minOccurs="0" maxOccurs="1" name="c" type="q2:boolean"/>
					<xs:element minOccurs="0" maxOccurs="1" name="d" type="q3:boolean"/>
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	<xs:complexType name="baseC">
		<xs:sequence>
			<xs:element minOccurs="0" maxOccurs="1" name="a" type="xs:string" />
			<xs:element minOccurs="0" maxOccurs="1" name="b" type="xs:string" />
		</xs:sequence>
	</xs:complexType>

	<xs:simpleType name="baseS" xmlns:q6="http://www.w3.org/2001/XMLSchema">
		<q6:restriction xmlns:q4="http://www.w3.org/2001/XMLSchema" base="q4:string">
			<q5:length xmlns:q5="http://www.w3.org/2001/XMLSchema" value="3"/>
		</q6:restriction>
	</xs:simpleType>

	<xs:complexType name="derivedS">
		<q7:simpleContent xmlns:q7="http://www.w3.org/2001/XMLSchema">
			<xs:extension xmlns:q8="x" base="q8:baseS">
				<xs:attribute name="p" type="q7:string"/>
			</xs:extension>
		</q7:simpleContent>
	</xs:complexType>
</xs:schema>