What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? James is listening to a song or it is not sunny. If Michael were a cashier, then it is sunny. If it rains, then Thomas is an artist. Thomas is an artist if and only if Michael is a cashier.
If it is sunny, then James is listening to a song. If Thomas were an artist, then Michael is a cashier. If Michael were a cashier, then Thomas is an artist.