What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_7 for which if x_7 plays squash, then x_7 is a bartender. For all x_7, x_7 is a soldier or x_7 will play squash. For all x_7, if x_7 drinks water, then x_7 is a bartender. For all x_7, x_7 is a soldier if and only if x_7 will drink water.
For all x_7, if x_7 were a soldier, then x_7 is drinking water. For all x_7, if x_7 drinks water, then x_7 is a soldier.