Instructions: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Input: Passage: In 1971, Camilla Shand meets Charles, Prince of Wales at a polo match. They get to know each other and begin dating. The relationship fizzles out when Charles travels overseas to join the Royal Navy in early 1973. Camilla immediately marries her ex-boyfriend Andrew Parker Bowles. Though Charles is hurt upon hearing about her marriage, they remain friends. Throughout their friendship Charles and Camilla hide their feelings for each other until 1979 when Lord Mountbatten is murdered and Charles visits her more for emotional support. They re-ignite their romantic relationship during this period. Charles is now in his early 30s and his family and the British media begins calling him out to find a suitable bride. He meets Lady Diana Spencer who the media falls in love with and they eventually get engaged. Although everyone is happy Charles is about to settle down, Charles and Camilla are not due to their feelings for each other, however, they end their relationship. The story ends with Charles and Camilla getting ready for his wedding in 1981, both looking grim while dressing up for the occasion.
Output:
What is the first name of the friend whose marriage upsets Charles?