Consider the following premises. For all x_9, x_9 will work or x_9 will not play a game. For all x_9, if x_9 were a sailor, then x_9 is playing a game. For all x_9, if x_9 makes tea, then x_9 is a sailor. For all x_9, if x_9 works, then x_9 is taking a plane. Can we infer the following from them? For all x_9, if x_9 makes tea, then x_9 is taking a plane.
 From the fact that for all x_9, if x_9 makes tea, then x_9 is a sailor, and that for all x_9, if x_9 were a sailor, then x_9 is playing a game we can infer that for all x_9, if x_9 makes tea, then x_9 is playing a game. From the fact that for all x_9, x_9 will work or x_9 will not play a game we can infer that for all x_9, if x_9 plays a game, then x_9 is working. From the fact that for all x_9, if x_9 makes tea, then x_9 is playing a game, and that for all x_9, if x_9 plays a game, then x_9 is working we can infer that for all x_9, if x_9 makes tea, then x_9 is working. Finally, from the fact that for all x_9, if x_9 makes tea, then x_9 is working, and that for all x_9, if x_9 works, then x_9 is taking a plane we can infer that for all x_9, if x_9 makes tea, then x_9 is taking a plane. Therefore, the answer is yes.