Question: What is the question to: "Cancer (♋) is an astrological sign , which is associated with the constellation Cancer ."? The topic is Cancer (astrology).
Answer: "What is sign of cancer?"

Question: What is the question to: "As the second largest city in San Diego County , Chula Vista has quickly become a destination popular to many tourists."? The topic is Chula Vista, California.
Answer: "what county is chula vista ca in?"

Question: What is the question to: "On May 11, 2012, the series was renewed for a ninth season, which premiered on September 27, 2012."? The topic is Grey's Anatomy.
Answer:
"how many seasons of grey's anatomy are there?"