Feeling is related to Kiss. Attraction would make you want to Kiss. Gravity is a type of Attraction. 
Cover is related to Piece. Piece is a type of Distance. Distance is related to Separation. 
Feeling <--RelatedTo--> Kiss <--CausesDesire-- Attraction <--IsA-- Gravity 
Cover <--RelatedTo--> Piece --IsA--> Distance <--RelatedTo--> Separation 