Adventure is related to Camp. Camp is related to Home. Home is the opposite of Apartment. 
Sister is the opposite of Boy. Boy is a type of Male. Male is related to Mark. Mark is related to Signature. 
Adventure <--RelatedTo--> Camp <--RelatedTo--> Home <--Antonym--> Apartment 
Sister <--Antonym--> Boy --IsA--> Male <--RelatedTo--> Mark <--RelatedTo--> Signature 