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_16 for which x_16 will not climb a mountain or x_16 will work. For all x_16, x_16 will climb a mountain or x_16 will drink water. For all x_16, x_16 will listen to a song or x_16 will not work. For all x_16, if x_16 drinks water, then x_16 is listening to a song.
There is at least one x_16 for which x_16 will drink water or x_16 will work can be inferred via the existential resolution rule. For all x_16, if x_16 works, then x_16 is listening to a song can be inferred via the universal rewriting rule.