Consider the following premises. John is drinking water if and only if James is a carpenter. For all x_10, if x_10 drinks water, then x_10 is sleeping. Can we infer the following from them? If James were a carpenter, then John is sleeping.
 From the fact that for all x_10, if x_10 drinks water, then x_10 is sleeping we can infer that if John drinks water, then John is sleeping. From the fact that John is drinking water if and only if James is a carpenter we can infer that if James were a carpenter, then John is drinking water. Finally, from the fact that if James were a carpenter, then John is drinking water, and that if John drinks water, then John is sleeping we can infer that if James were a carpenter, then John is sleeping. Therefore, the answer is yes.