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_15, if x_15 reads a book, then x_15 is running. For all x_15, if x_15 listens to a song, then x_15 is reading a book. There is at least one x_15 for which if x_15 drinks water, then x_15 is making tea. For all x_15, x_15 will listen to a song or x_15 will not make tea. For all x_15, if x_15 goes running, then x_15 is drinking water.
For all x_15, if x_15 reads a book, then x_15 is drinking water can be inferred via the universal transitivity rule. For all x_15, if x_15 listens to a song, then x_15 is running can be inferred via the universal transitivity rule. There is at least one x_15 for which if x_15 goes running, then x_15 is making tea can be inferred via the existential transitivity rule. For all x_15, if x_15 makes tea, then x_15 is listening to a song can be inferred via the universal rewriting rule.