XML for creating subsites in Sandbox Solution

<?xml version="1.0" encoding="utf-8"?>
<web url="global" title="Global" description="global site" template="Enterprise Wiki">
<web url="CorporateComunications" title="Corporate Communications" description="level 2 subsite" template="Enterprise Wiki"></web>
<web url="TimeAndAttendence" title="Time and Attendence" description="level 2 subsite" template="Enterprise Wiki">
<web url="Employee" title="Employee" description="level 3 subsite" template="Enterprise Wiki"></web>
<web url="HR" title="HR" description="level 3 subsite" template="Enterprise Wiki"></web>
</web>
</web>