Consider the following premises. Charles is not making tea. If Jennifer were excited, then Charles is making tea. If Jennifer were sad, then Richard is a bartender. If Charles makes tea, then Jennifer is excited. Richard is not a bartender. Can we infer the following from them? Jennifer is sad.
 From the fact that if Jennifer were excited, then Charles is making tea, and that if Charles makes tea, then Jennifer is excited we can infer that Jennifer is excited if and only if Charles is making tea. From the fact that Jennifer is excited if and only if Charles is making tea, and that Charles is not making tea we can infer that Jennifer is not excited. Finally, from the fact that if Jennifer were sad, then Richard is a bartender, and that Richard is not a bartender we can infer that Jennifer is not sad, which contradicts that Jennifer is sad. Therefore, the answer is no.