Ranch can be used for Cattle. Cattle is related to Baby. Baby is related to Father. 
Couple is a type of Family. Grandfather is part of Family. Grandfather is the opposite of Grandchild. Grandchild is the opposite of Grandparent. 
Ranch --UsedFor--> Cattle <--RelatedTo--> Baby <--RelatedTo--> Father 
Couple --IsA--> Family <--PartOf-- Grandfather <--Antonym--> Grandchild <--Antonym--> Grandparent 