Consider the following premises. If Jennifer drinks water, then James is not a taxi driver. If John were a carpenter, then it is windy. Sarah is writing a letter. If it is windy, then James is a taxi driver. John is a carpenter. Can we infer the following from them? Jennifer is not drinking water.
 From the fact that if John were a carpenter, then it is windy, and that if it is windy, then James is a taxi driver we can infer that if John were a carpenter, then James is a taxi driver. From the fact that if John were a carpenter, then James is a taxi driver, and that John is a carpenter we can infer that James is a taxi driver. Finally, from the fact that if Jennifer drinks water, then James is not a taxi driver, and that James is a taxi driver we can infer that Jennifer is not drinking water. Therefore, the answer is yes.