What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_10, x_10 will not read a book or x_10 is a taxi driver. If Richard were rich, then Jessica is not cooking. For all x_10, x_10 will read a book or x_10 is rich. Jessica is cooking.
Richard is not rich. For all x_10, x_10 is rich or x_10 is a taxi driver.