What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? William is playing a game or Jennifer is a janitor. If Jennifer were a janitor, then Patricia is playing tennis. For all x_8, if x_8 were an office clerk, then x_8 is playing tennis. William is not playing a game or Patricia is an office clerk.
Jennifer is a janitor or Patricia is an office clerk. If Patricia drinks water, then William is not playing a game.