Regulator is a type of Control. Control is a type of Power. Power is related to Steam. 
Wave is related to Wind. Wind is related to Movement. Movement is related to Cross. Cross is the opposite of Pleased. 
Regulator --IsA--> Control --IsA--> Power <--RelatedTo--> Steam 
Wave <--RelatedTo--> Wind <--RelatedTo--> Movement <--RelatedTo--> Cross <--Antonym--> Pleased 