<?xml version="1.0" encoding="UTF-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://xmlbeans.apache.org/inst2xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="a">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="a:b" xmlns:a="http://xmlbeans.apache.org/a"/>
        <xs:element ref="b:c" xmlns:b="http://xmlbeans.apache.org/b"/>
        <xs:element ref="c:d" xmlns:c="http://xmlbeans.apache.org/c"/>
        <xs:element type="xs:string" name="d" xmlns:xs="http://www.w3.org/2001/XMLSchema"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>