Consider the following premises. For all x_8, x_8 will play squash or x_8 is excited. For all x_8, if x_8 were excited, then x_8 is not a cashier. For all x_8, x_8 will not play squash or x_8 is sad. For all x_8, x_8 is a cashier. For all x_8, if x_8 were sad, then x_8 is a taxi driver. Can we infer the following from them? For all x_8, x_8 is a taxi driver.
 From the fact that for all x_8, if x_8 were excited, then x_8 is not a cashier, and that for all x_8, x_8 is a cashier we can infer that for all x_8, x_8 is not excited. From the fact that for all x_8, x_8 will play squash or x_8 is excited, and that for all x_8, x_8 will not play squash or x_8 is sad we can infer that for all x_8, x_8 is excited or x_8 is sad. From the fact that for all x_8, x_8 is excited or x_8 is sad, and that for all x_8, x_8 is not excited we can infer that for all x_8, x_8 is sad. Finally, from the fact that for all x_8, if x_8 were sad, then x_8 is a taxi driver, and that for all x_8, x_8 is sad we can infer that for all x_8, x_8 is a taxi driver. Therefore, the answer is yes.