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_5, if x_5 were a musician, then x_5 is working. For all x_5, x_5 will not play squash or x_5 is a musician. For all x_5, if x_5 were a cashier, then x_5 is working. For all x_5, x_5 will play squash or x_5 will make tea. There is at least one x_5 for which x_5 will not make tea or x_5 is a cashier.
For all x_5, x_5 will make tea or x_5 is a musician can be inferred via the universal resolution rule.