{{#reviewabout:Submissions:ConceptGroup|}}
Overall suggestion (score): 0 - needs major revision
The first thing is that I am not sure what is meant by concept here. Does it corresponds to the concept of an ontology? In this case shouldn't it be related to owl:Class in the OWL description? This would cause a number of issues at the logical level, in particular, if Group is a concept. This needs to be made clear in my opinion.
Also, Group should be called ConceptGroup.
I don't really understand the difference between subgroup and narrowerThan. Isn't a subgroup narrower?
Finally, I don't see a clear application for this pattern as is.