Consider the following premises. For all x_5, x_5 is not a poet. For all x_5, if x_5 were an office clerk, then x_5 is a poet. For all x_5, if x_5 were a poet, then x_5 is an office clerk. For all x_5, if x_5 drinks water, then x_5 is an office clerk. Can we infer the following from them? For all x_5, x_5 will not drink water.
 From the fact that for all x_5, if x_5 were an office clerk, then x_5 is a poet, and that for all x_5, if x_5 were a poet, then x_5 is an office clerk we can infer that for all x_5, x_5 is an office clerk if and only if x_5 is a poet. From the fact that for all x_5, x_5 is an office clerk if and only if x_5 is a poet, and that for all x_5, x_5 is not a poet we can infer that for all x_5, x_5 is not an office clerk. Finally, from the fact that for all x_5, if x_5 drinks water, then x_5 is an office clerk, and that for all x_5, x_5 is not an office clerk we can infer that for all x_5, x_5 will not drink water. Therefore, the answer is yes.