What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists y_2: W_1(y_2). forall y_2: S(y_2). forall y_2: R(y_2).
forall y_2: S(y_2) and R(y_2). forall y_2: R(y_2) and S(y_2). exists y_2: W_1(y_2) and S(y_2). exists y_2: W_1(y_2) and R(y_2). exists y_2: S(y_2) and W_1(y_2). exists y_2: R(y_2) and W_1(y_2).