What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_3, if y_3 drinks water, then y_3 is playing tennis. There is at least one y_3 for which y_3 will drink water or y_3 is not a bartender.
There is at least one y_3 for which if y_3 were a bartender, then y_3 is drinking water.