Consider the following premises. For all x_10, x_10 will work. For all x_10, if x_10 works, then x_10 is writing a letter. For all x_10, if x_10 were a sailor, then x_10 is drinking water. For all x_10, x_10 is a sailor. Can we infer the following from them? For all x_10, x_10 will drink water or x_10 will play a game.
 From the fact that for all x_10, if x_10 works, then x_10 is writing a letter, and that for all x_10, x_10 will work we can infer that for all x_10, x_10 will write a letter. From the fact that for all x_10, if x_10 were a sailor, then x_10 is drinking water, and that for all x_10, x_10 is a sailor we can infer that for all x_10, x_10 will drink water. From the fact that for all x_10, x_10 will drink water, and that for all x_10, x_10 will write a letter we can infer that for all x_10, x_10 will drink water and x_10 will write a letter. From the fact that for all x_10, x_10 will drink water and x_10 will write a letter we can infer that for all x_10, x_10 will drink water. Finally, from the fact that for all x_10, x_10 will drink water we can infer that for all x_10, x_10 will drink water or x_10 will play a game. Therefore, the answer is yes.