Task: Question Generation
Input (English): Passage: A young couple, Brooke and Lance, are injured in a car accident. At the hospital, Brooke is awakened by a nurse named Barb who informs her that Lance has been seriously injured and is in surgery. Not being able to remember everything that happened, Brooke eventually tells them that she remembers a man crossing the road in front of them just before they hit him, which is strange since Brooke and Lance are the only people who were transported to the hospital. With Lance's upcoming release, it's important that Brooke finds a competent nurse who can look after him while she works. Lance is left to be cared for by an attractive nurse Chloe. However, his health begins to decline after he is administered several doses of Oxycontin, leading Brooke to wonder if his nurse is harming him. Her suspicions are confirmed when a phone call from a stranger brings Chloe's troubled past to light. Soon, they discover that one of the hospital nurses is out to exact revenge.
Output (English): Who causes the health of Brooke's partner to decline?