Given the task definition and input, reply with output. In this task, you will be shown an extract from a movie plot. You need to read the extract and create questions that can be answered from the extract. The questions should be well-formed and grammatically correct. The questions should be completely answerable from the given passage and should not require any external knowledge. Subjective questions are not allowed. Create questions that result in factoid answers. A simple rule of thumb to decide whether a question is factoid or not is to see if two different people with average reading/comprehension skills would come up with the same answer after reading the passage.

After witnessing the murder of his wife and young son at the hands of Henry Caine (Craig Fairbrass) who then turned the gun on himself, Abe Dale (Nathan Fillion) is so distressed that he attempts to take his own life. A near-death experience follows that leaves Abe with the ability to identify those who are about to die. He acts on these premonitions to save three people from death, among them a nurse met during his recovery, Sherry Clarke (Katee Sackhoff). Abe soon learns that Henry, before murdering Abe's wife and son, actually saved their lives. This leads Abe to believe that Henry also had the ability to see death. This makes Abe want to learn more about Henry, so he visits his house only to learn that Henry survived his suicide. Investigating further, Abe discovers that three days after cheating death, those whose lives he saved will be possessed and compelled to take the lives of others. Accepting this responsibility, Abe comes with to terms with the horrible fact that he must consider killing to prevent further tragedy.
What is Sherry Clarke's profession?