What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_9 for which if x_9 were an office clerk, then x_9 is working. For all x_9, if x_9 were a musician, then x_9 is an office clerk. For all x_9, if x_9 works, then x_9 is an office clerk. For all x_9, x_9 is a musician.
For all x_9, x_9 is an office clerk. There is at least one x_9 for which if x_9 were a musician, then x_9 is working. There is at least one x_9 for which x_9 is an office clerk if and only if x_9 will work. There is at least one x_9 for which x_9 will work if and only if x_9 is an office clerk.