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 politician, then x_5 is sad. There is at least one x_5 for which x_5 will drink water or x_5 will go running. For all x_5, if x_5 were a lawyer, then x_5 is a politician. For all x_5, if x_5 goes running, then x_5 is a lawyer. For all x_5, if x_5 drinks water, then x_5 is sad.
For all x_5, if x_5 were a lawyer, then x_5 is sad can be inferred via the universal transitivity rule. For all x_5, if x_5 goes running, then x_5 is a politician can be inferred via the universal transitivity rule.