Criterion '166536e2-77f7-455c-b018-70582474e4f6' MUST have RequirementGroup 'd91c11a1-f19e-4b83-8ade-c4be2bf00555' as child number 1.
ccv:Criterion[cbc:ID[normalize-space(text()) = '166536e2-77f7-455c-b018-70582474e4f6']]
ccv:RequirementGroup[1] and normalize-space(ccv:RequirementGroup[1][current()]/cbc:ID/text()) = 'd91c11a1-f19e-4b83-8ade-c4be2bf00555'