Consider the following premises. There is at least one x_7 for which x_7 will drink water or x_7 is not an astronaut. For all x_7, x_7 will not make tea. For all x_7, x_7 will make tea or x_7 is an astronaut. Can we infer the following from them? There is at least one x_7 for which x_7 will drink water.
 From the fact that for all x_7, x_7 will make tea or x_7 is an astronaut, and that for all x_7, x_7 will not make tea we can infer that for all x_7, x_7 is an astronaut. From the fact that there is at least one x_7 for which x_7 will drink water or x_7 is not an astronaut we can infer that there is at least one x_7 for which if x_7 were an astronaut, then x_7 is drinking water. Finally, from the fact that there is at least one x_7 for which if x_7 were an astronaut, then x_7 is drinking water, and that for all x_7, x_7 is an astronaut we can infer that there is at least one x_7 for which x_7 will drink water. Therefore, the answer is yes.