What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_15, x_15 will not drink water. For all x_15, x_15 will not drive a car or x_15 is fast. For all x_15, x_15 will drive a car or x_15 will go running. For all x_15, x_15 will not go running. There is at least one x_15 for which x_15 will drink water or x_15 is sad.
There is at least one x_15 for which x_15 is sad. For all x_15, x_15 will go running or x_15 is fast.