Consider the following premises. For all x_9, if x_9 drinks water, then x_9 is a politician. For all x_9, x_9 is not a politician. For all x_9, if x_9 were a poet, then x_9 is drinking water. There is at least one x_9 for which if x_9 were a politician, then x_9 is drinking water. Can we infer the following from them? For all x_9, x_9 is a poet.
 From the fact that there is at least one x_9 for which if x_9 were a politician, then x_9 is drinking water, and that for all x_9, if x_9 drinks water, then x_9 is a politician we can infer that there is at least one x_9 for which x_9 is a politician if and only if x_9 will drink water. From the fact that there is at least one x_9 for which x_9 is a politician if and only if x_9 will drink water, and that for all x_9, x_9 is not a politician we can infer that there is at least one x_9 for which x_9 will not drink water. Finally, from the fact that for all x_9, if x_9 were a poet, then x_9 is drinking water, and that there is at least one x_9 for which x_9 will not drink water we can infer that there is at least one x_9 for which x_9 is not a poet, which contradicts that For all x_9, x_9 is a poet. Therefore, the answer is no.