What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_1 for which if x_1 goes running, then x_1 is reading a book. For all x_1, x_1 is happy. For all x_1, if x_1 were happy, then x_1 is reading a book.
For all x_1, x_1 will read a book.