What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, if y were poor, then y is running. For all y, if y drinks water, then y is running. There is at least one y for which if y goes running, then y is drinking water.
There is at least one y for which if y were poor, then y is drinking water. There is at least one y for which y will go running if and only if y will drink water. There is at least one y for which y will drink water if and only if y will go running.