Action is related to Bit. Bit is a type of Fragment. Fragment is a type of Piece. 
Mouse is a type of Manipulate. Toy is a type of Manipulate. Toy is related to Play. Guitar would make you want to Play. 
Action <--RelatedTo--> Bit --IsA--> Fragment --IsA--> Piece 
Mouse --IsA--> Manipulate <--IsA-- Toy <--RelatedTo--> Play <--CausesDesire-- Guitar 