<?xml version="1.0"?>
<rules startMode="A"
       xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0">
    <mode name="A">
        <namespace ns="http://www.A.org">
            <validate schema="A.xsd"
                      useMode="B" />
        </namespace>
    </mode>
    <mode name="B">
        <namespace ns="http://www.B.org">
            <attach />
        </namespace>
    </mode>
</rules>
