What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, x_4 will read a book. There is at least one x_4 for which if x_4 were poor, then x_4 is climbing a mountain. For all x_4, x_4 is poor.
There is at least one x_4 for which x_4 will climb a mountain. For all x_4, x_4 will read a book and x_4 is poor. For all x_4, x_4 is poor and x_4 will read a book.