What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? p_13. p_13 -> p_8. u_3 -> p_8. q_8 -> p_13. p_8 -> q_8.
p_8. p_13 -> q_8. u_3 -> q_8. q_8 -> p_8. p_8 -> p_13.