What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_1, if x_1 were a cashier, then x_1 is playing a game. For all x_1, x_1 will read a book. For all x_1, x_1 is a cashier.
For all x_1, x_1 will play a game. For all x_1, x_1 will read a book and x_1 is a cashier. For all x_1, x_1 is a cashier and x_1 will read a book.