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: There is at least one x_8 for which x_8 will make tea or x_8 is not bored. For all x_8, if x_8 were a bartender, then x_8 is bored. For all x_8, if x_8 makes tea, then x_8 is a bartender.
For all x_8, if x_8 makes tea, then x_8 is bored can be inferred via the universal transitivity rule. There is at least one x_8 for which if x_8 were bored, then x_8 is making tea can be inferred via the existential rewriting rule.