Consider the following premises. For all x_3, if x_3 makes tea, then x_3 is drinking water. For all x_3, x_3 will make tea. For all x_3, x_3 will not drink water. Can we infer the following from them? If we can, name the inference rule being used: There is at least one x_3 for which x_3 is not a bartender.
The premises are contradictory and we can infer anything from them. Therefore, the answer is yes.