What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z_1, z_1 will drink water or z_1 will read a book. For all z_1, z_1 will not drink water or z_1 will play squash. For all z_1, if z_1 works, then z_1 is curious. For all z_1, z_1 is curious or z_1 will not play squash. There is at least one z_1 for which z_1 will work or z_1 will not read a book.
For all z_1, z_1 will read a book or z_1 will play squash. For all z_1, if z_1 plays squash, then z_1 is curious. There is at least one z_1 for which if z_1 reads a book, then z_1 is working.