Sink is related to Wash. Wash is related to Shower. Shower is related to Bathroom. 
Invade is a type of Attack. Attack is the opposite of Cease. Cease is a type of End. End is related to Bit. 
Sink <--RelatedTo--> Wash <--RelatedTo--> Shower <--RelatedTo--> Bathroom 
Invade --IsA--> Attack <--Antonym--> Cease --IsA--> End <--RelatedTo--> Bit 