Buy is related to Rent. Rent is related to Let. Let is related to Lack. Lack is a different concept from Sufficient. 
Board entails/necessarily involves Consume. Board is related to Collective. Collective is a type of Enterprise. 
Buy <--RelatedTo--> Rent <--RelatedTo--> Let <--RelatedTo--> Lack <--DistinctFrom--> Sufficient 
Consume <--Entails-- Board <--RelatedTo--> Collective --IsA--> Enterprise 