Want to create XML schema to validate two XMLS

[JacobOnly]

I have 2 Xml files. 1st file we can call master as its having all nodes and in 2nd files only few information is there.How can i creat a single xsd supporting both files.File1: \[code\] <Information ID="08" ><description>office information</description><officeName>SBV</officeName><A id="234"> <name>xyz</name> < age>23</age> <dept>SE</dept></A> <B id="244"> <name>lkj</name> < age>27</age> <dept>Sales</dept></B><C id="264"> <name>opi</name> < age>34</age> <dept>Manufacture</dept></C> <D id="774"> <name>yui</name> < age>25</age> <dept>Production</dept></D></Information>File2: <Information ><description>Worker information</description><A id="234"> <name>xyz</name> < age>23</age> <dept>WP</dept></A> <B id="244"> <name>lkj</name> < age>27</age> <dept>WP</dept></B></Information>\[/code\]