Feeling is related to Regret. Regret is the opposite of Satisfaction. Satisfaction is related to Eat. 
Piano is related to Play. Promote is a type of Play. Foster is a type of Promote. Foster is a synonym of Protect. 
Feeling <--RelatedTo--> Regret <--Antonym--> Satisfaction <--RelatedTo--> Eat 
Piano <--RelatedTo--> Play <--IsA-- Promote <--IsA-- Foster <--Synonym--> Protect 