Problem: No license found at all (neither dct:license, xhv:license nor cc:license)
Conflicting nodes: 4
Conflicting Nodes:
http://www.w3.org/ns/spec#AdvisementLevel
http://www.w3.org/ns/spec#SpecificationCategory
http://www.w3.org/ns/spec#ClassesOfProducts
http://www.w3.org/ns/spec#RequirementLevel