Welfare is related to Program. Program cannot be Difficult. Difficult is a synonym of Dense. 
Consume is related to Drink. Drink is related to Drive. Drive is a synonym of Engine. 
Welfare <--RelatedTo--> Program --NotHasProperty--> Difficult <--Synonym--> Dense 
Consume <--RelatedTo--> Drink <--RelatedTo--> Drive <--Synonym--> Engine 