Gear is a type of Wheel. Wheel is related to Circle. Circle is a type of Shape. Throw is a type of Shape. 
Feed is related to Need. you are likely to find Friend in/at/on Need. Friend is the opposite of Opponent. 
Gear --IsA--> Wheel <--RelatedTo--> Circle --IsA--> Shape <--IsA-- Throw 
Feed <--RelatedTo--> Need <--AtLocation-- Friend <--Antonym--> Opponent 