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 is a scientist or x_14 is an astronaut. There is at least one x_14 for which x_14 will not cook. For all x_14, if x_14 were a scientist, then x_14 is a nurse. For all x_14, x_14 will cook if and only if x_14 is a nurse.
For all x_14, if x_14 cooks, then x_14 is a nurse. For all x_14, if x_14 were a nurse, then x_14 is cooking. There is at least one x_14 for which x_14 is not a nurse.