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_7, x_7 is not a scientist. For all x_7, x_7 is a scientist or x_7 will drink water. Elisabeth is not drinking water or it is cloudy.
For all x_7, x_7 will drink water can be inferred via the universal disjunctive syllogism rule.