<ccv:RequirementGroup>
<cbc:ID schemeAgencyID="EU-COM-GROW" schemeVersionID="1.0">488ca189-bcdb-4bf4-80c7-3ad507fd89fb</cbc:ID>
<!-- Requirement with identifier '51391308-0bf6-423c-95e2-d5a54aa31fb8'. -->
</ccv:RequirementGroup>
RequirementGroup '488ca189-bcdb-4bf4-80c7-3ad507fd89fb' MUST have Requirement '51391308-0bf6-423c-95e2-d5a54aa31fb8' as child number 1.
ccv:RequirementGroup[cbc:ID[text() = '488ca189-bcdb-4bf4-80c7-3ad507fd89fb']]
ccv:Requirement[1] and normalize-space(ccv:Requirement[1][current()]/cbc:ID/text()) = '51391308-0bf6-423c-95e2-d5a54aa31fb8'
RequirementGroup
element with id '488ca189-bcdb-4bf4-80c7-3ad507fd89fb'<ccv:RequirementGroup>
<cbc:ID schemeAgencyID="EU-COM-GROW" schemeVersionID="1.0">488ca189-bcdb-4bf4-80c7-3ad507fd89fb</cbc:ID>
<!-- Requirement with identifier '51391308-0bf6-423c-95e2-d5a54aa31fb8'. -->
</ccv:RequirementGroup>