Unhappy is the opposite of Satisfaction. Pride is a type of Satisfaction. 
Killer is related to Pain. Pain is related to Sharp. Sharp is related to Mountain. Mountain is related to Sky. 
Unhappy <--Antonym--> Satisfaction <--IsA-- Pride 
Killer <--RelatedTo--> Pain <--RelatedTo--> Sharp <--RelatedTo--> Mountain <--RelatedTo--> Sky 