What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_14, x_14 will listen to a song if and only if x_14 is an office clerk. If Susan were sad, then Mary is an office clerk. If Jessica were a soldier, then Susan is sad.
If Jessica were a soldier, then Mary is an office clerk. For all x_14, if x_14 listens to a song, then x_14 is an office clerk. For all x_14, if x_14 were an office clerk, then x_14 is listening to a song.