What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? t_4 or s_4. r_10 -> q_4. t_2 -> r_10. s_4 -> r_10. t_4 -> t_2.
t_2 -> q_4. s_4 -> q_4. t_4 -> r_10.