What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_22, if x_22 plays tennis, then x_22 is making tea. For all x_22, if x_22 were a bartender, then x_22 is making tea. For all x_22, x_22 will play tennis or x_22 is a bartender. If Sarah makes tea, then David is a lawyer.
For all x_22, x_22 will make tea can be inferred via the universal disjunction elimination rule.