%topCla(enzyme_state-{Sign,EC_Number,no_change},[]):-!. % previously translate no_change to []
topCla(enzyme_state-{Sign,EC_Number,State},[enzyme_state(EC_Number,State)]).



/*
topCla(enzyme_state-{EC_Number,no_change},[]).
topCla(enzyme_state-{EC_Number,State},[enzyme_state(EC_Number,State)]):- State\==no_change.
*/