What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, if x_6 reads a book, then x_6 is cooking. For all x_6, if x_6 cooks, then x_6 is a mechanic. For all x_6, x_6 will play squash or x_6 will read a book. There is at least one x_6 for which if x_6 were a doctor, then x_6 is a mechanic. For all x_6, if x_6 plays squash, then x_6 is cooking.
For all x_6, if x_6 reads a book, then x_6 is a mechanic. For all x_6, if x_6 plays squash, then x_6 is a mechanic. For all x_6, x_6 will cook.