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_7 for which x_7 is a soldier or x_7 will work. For all x_7, x_7 will read a book if and only if x_7 is a soldier. For all x_7, x_7 will not drive a car. For all x_7, x_7 will drive a car if and only if x_7 will read a book.
For all x_7, if x_7 reads a book, then x_7 is a soldier. For all x_7, if x_7 drives a car, then x_7 is reading a book. For all x_7, if x_7 were a soldier, then x_7 is reading a book. For all x_7, if x_7 reads a book, then x_7 is driving a car. For all x_7, x_7 will not read a book.