Politician is related to Man. Man is related to Girl. Girl is related to Pig. Pig is related to Living. 
House is the opposite of Creature. Creature is related to Bat. Bat is related to Skin. 
Politician <--RelatedTo--> Man <--RelatedTo--> Girl <--RelatedTo--> Pig <--RelatedTo--> Living 
House <--Antonym--> Creature <--RelatedTo--> Bat <--RelatedTo--> Skin 