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 for which x will not listen to a song or x is a politician. For all x, x will listen to a song or x will sleep.
There is at least one x for which x will sleep or x is a politician can be inferred via the existential resolution rule.