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: Robert is a server or Jennifer is not drinking water. For all x_11, if x_11 were a poet, then x_11 is a bartender. For all x_11, if x_11 were a server, then x_11 is a poet.
If Jennifer drinks water, then Robert is a server can be inferred via the rewriting rule. For all x_11, if x_11 were a server, then x_11 is a bartender can be inferred via the universal transitivity rule.