What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is a mechanic. For all x_5, if x_5 were a poet, then x_5 is climbing a mountain. There is at least one x_5 for which if x_5 were a janitor, then x_5 is a poet. For all x_5, if x_5 climbs a mountain, then x_5 is not a mechanic.
For all x_5, x_5 will not climb a mountain. There is at least one x_5 for which if x_5 were a janitor, then x_5 is climbing a mountain.