Part is related to Mouth. Mouth is related to Eat. Eat is related to Egg. Egg is related to Baby. 
Abandon is the opposite of Adopt. Adopt is related to Get. Earn is a type of Get. 
Part <--RelatedTo--> Mouth <--RelatedTo--> Eat <--RelatedTo--> Egg <--RelatedTo--> Baby 
Abandon <--Antonym--> Adopt <--RelatedTo--> Get <--IsA-- Earn 