Cause is a synonym of Get. Get is a type of Return. Return is related to Flight. Feather can be used for Flight. 
Fine is related to Excellent. Excellent is related to Cell. Cell is related to Genetic. 
Cause <--Synonym--> Get --IsA--> Return <--RelatedTo--> Flight <--UsedFor-- Feather 
Fine <--RelatedTo--> Excellent <--RelatedTo--> Cell <--RelatedTo--> Genetic 