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, x_6 will go running or x_6 is a taxi driver. For all x_6, x_6 is happy. For all x_6, x_6 will not go running. For all x_6, if x_6 were happy, then x_6 is working.
For all x_6, x_6 will work. For all x_6, x_6 is a taxi driver.