What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_17, if x_17 cooks, then x_17 is happy. For all x_17, x_17 is a musician if and only if x_17 will work. For all x_17, x_17 will sleep. There is at least one x_17 for which x_17 will cook or x_17 will work. For all x_17, if x_17 were happy, then x_17 is a musician.
For all x_17, if x_17 cooks, then x_17 is a musician. For all x_17, if x_17 were a musician, then x_17 is working. For all x_17, if x_17 works, then x_17 is a musician.