Pig is related to Girl. Girl is related to Female. Grandmother is a type of Female. Grandmother is the opposite of Grandchild. 
Homeland is derived from Land. Land is related to Firm. 
Pig <--RelatedTo--> Girl <--RelatedTo--> Female <--IsA-- Grandmother <--Antonym--> Grandchild 
Homeland --DerivedFrom--> Land <--RelatedTo--> Firm 