<?xml version="1.0"?>
<!-- This code will be used to define the element record, which is the only element contained inside the address_book root element -->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<xsd:element name="sibling" type="siblingType">
		<xsd:complexType name="siblingType">
			<xsd:sequence>
				<xsd:element name="siblings" type="xsd:string" minOccurs="0" maxOccurs="1"/>
			</xsd:sequence>
		</xsd:complexType>
	</xsd:element>
</xsd:schema>