Week is a different concept from Strong. Strong is related to Current. Current is related to Liquid. 
Liberty is related to Captain. Captain is related to Occupation. Occupation is related to Merchant. Merchant is related to Buyer. 
Week <--DistinctFrom--> Strong <--RelatedTo--> Current <--RelatedTo--> Liquid 
Liberty <--RelatedTo--> Captain <--RelatedTo--> Occupation <--RelatedTo--> Merchant <--RelatedTo--> Buyer 