Crazy is related to Wild. Wild is related to Card. Card is related to Mail. 
Supposed is related to Hang. Hang is the opposite of Climb. Climb is the opposite of Slide. 
Crazy <--RelatedTo--> Wild <--RelatedTo--> Card <--RelatedTo--> Mail 
Supposed <--RelatedTo--> Hang <--Antonym--> Climb <--Antonym--> Slide 