What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_14: P_14(x_14). forall x_14: Q_14(x_14). S(c_2).
exists x: S(x). forall x_14: P_14(x_14) and Q_14(x_14). forall x_14: Q_14(x_14) and P_14(x_14).