fix one step rewriter
java.lang.IllegalArgumentException: [WrongQueryAnswerVariables] Tried to create query profile(X4,W) ^ country(R,R3) ^ interest(W,W1) ^ education(W,W5) ^ street(R,R1) ^ site(Graal:EE216,Graal:EE215) ^ gender(W,W3) ^ name(X4,U) ^ homepage(X4,T) ^ person(X3,X4) ^ at_income(W,W6) ^ city(R,R2) ^ at_category(W1,W2) ^ q_people_0(X2,X3) ^ creditcard(X4,V) ^ age(W,W4) ^ address(X4,R) with answer variable X1 that is not part of the query nor the initial substitution.