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_8, x_8 is happy or x_8 is not excited. For all x_8, x_8 will make tea or x_8 is excited. For all x_8, x_8 will not make tea or x_8 will play squash. For all x_8, if x_8 plays squash, then x_8 is happy.
For all x_8, x_8 is excited or x_8 will play squash can be inferred via the universal resolution rule. For all x_8, if x_8 were excited, then x_8 is happy can be inferred via the universal rewriting rule.