What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 will go running if and only if x_7 will drink water. For all x_7, x_7 will drink water if and only if x_7 is a soldier.
For all x_7, if x_7 goes running, then x_7 is drinking water. For all x_7, if x_7 drinks water, then x_7 is a soldier. For all x_7, if x_7 drinks water, then x_7 is running. For all x_7, if x_7 were a soldier, then x_7 is drinking water.