What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Jessica drinks water, then Mary is listening to a song. If Mary listens to a song, then Jessica is drinking water. Michael is cooking if and only if Mary is listening to a song. Michael is not cooking.
Jessica is drinking water if and only if Mary is listening to a song. Mary is listening to a song if and only if Jessica is drinking water. If Michael cooks, then Mary is listening to a song. If Mary listens to a song, then Michael is cooking. Mary is not listening to a song.