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: q -> q_8. t -> w. w -> q. q_8 -> t.
q -> t can be inferred via the transitivity rule. t -> q can be inferred via the transitivity rule. w -> q_8 can be inferred via the transitivity rule. q_8 -> w can be inferred via the transitivity rule.