<a:foo xmlns:a="http://a">
 <a:bar>xsd:string</a:bar>
 <dsig2:IncludedXPath xmlns:dsig2="http://www.w3.org/2010/xmldsig2#">/soap-env:body/child::b:foo[@att1 != "c:val" and @att2 != 'xsd:string']</dsig2:IncludedXPath>
</a:foo>