Note that your XML declares a prefixless namespace, i.e. all its nodes belong to a namespace. The XPath expressions don't mention any namespace, therefore there are no matches in the document. You can easily verify that in XML::XSH2, a wrapper around XML::LibXML: 
$scratch/> open 1.xml
parsing 1.xml
done.
                                                                      
+                                                                     
+                                                                     
+                                                                  /> 
+ls //Party

Found 0 node(s).
                                                                      
+                                                                     
+                                                                     
+                                                                  /> 
+register-namespace l http://ACORD.org/Standards/Life/2
                                                                      
+                                                                     
+                                                                     
+                                                                  /> 
+count //l:Party
3

/> ls //Party[@id=//Relation[child::RelationRoleCode[@tc='37']]/@Relat
+edObjectID]/Producer/CarrierAppointment/CompanyProducerID

Found 0 node(s).

/> ls //l:Party[@id=//l:Relation[child::l:RelationRoleCode[@tc='37']]/
+@RelatedObjectID]/l:Producer/l:CarrierAppointment/l:CompanyProducerID
<CompanyProducerID>459JQ</CompanyProducerID>

Found 1 node(s).

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لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Xpath value query by choroba
in thread Xpath value query by Anonymous Monk

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