What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_2, if x_2 were an astronaut, then x_2 is reading a book. For all x_2, x_2 is an astronaut or x_2 is an office clerk. For all x_2, x_2 will read a book or x_2 is not an office clerk.
For all x_2, if x_2 were an office clerk, then x_2 is reading a book.