What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_1, if y_1 cooks, then y_1 is climbing a mountain. For all y_1, if y_1 were an astronaut, then y_1 is cooking. For all y_1, if y_1 were a server, then y_1 is an astronaut. There is at least one y_1 for which if y_1 climbs a mountain, then y_1 is a server.
For all y_1, if y_1 were an astronaut, then y_1 is climbing a mountain. For all y_1, if y_1 were a server, then y_1 is cooking. There is at least one y_1 for which if y_1 climbs a mountain, then y_1 is an astronaut. There is at least one y_1 for which if y_1 cooks, then y_1 is a server.