What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is not a bartender or x_5 will play tennis. For all x_5, x_5 is happy or x_5 is not a writer. There is at least one x_5 for which x_5 is a bartender or x_5 is a writer. For all x_5, if x_5 plays tennis, then x_5 is happy.
There is at least one x_5 for which x_5 is a writer or x_5 will play tennis. For all x_5, if x_5 were a writer, then x_5 is happy.