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 were a taxi driver, then x_6 is reading a book. For all x_6, x_6 will go running or x_6 is a server. For all x_6, x_6 is not a server or x_6 will play tennis. There is at least one x_6 for which x_6 will not go running or x_6 is a taxi driver. For all x_6, if x_6 plays tennis, then x_6 is reading a book.
There is at least one x_6 for which x_6 is a server or x_6 is a taxi driver.