What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_3, y_3 will play tennis if and only if y_3 is a musician. For all y_3, y_3 is a musician if and only if y_3 is rich. For all y_3, y_3 is a poet if and only if y_3 will play tennis.
For all y_3, if y_3 plays tennis, then y_3 is a musician. For all y_3, if y_3 were a musician, then y_3 is rich. For all y_3, if y_3 were a poet, then y_3 is playing tennis. For all y_3, if y_3 were a musician, then y_3 is playing tennis. For all y_3, if y_3 were rich, then y_3 is a musician. For all y_3, if y_3 plays tennis, then y_3 is a poet.