Message

Criterion 'c27b7c4e-c837-4529-b867-ed55ce639db5' MUST have RequirementGroup '7c637c0c-7703-4389-ba52-02997a055bd7' as child number 1.

Context
ccv:Criterion[cbc:ID[normalize-space(text()) = 'c27b7c4e-c837-4529-b867-ed55ce639db5']]
Test
ccv:RequirementGroup[1] and normalize-space(ccv:RequirementGroup[1][current()]/cbc:ID/text()) = '7c637c0c-7703-4389-ba52-02997a055bd7'