Question: What is the question to: "It opened to the public on May 24, 2007, relocating from and replacing the original exhibit."? The topic is World of Coca-Cola.
Answer: "when was the world of coca cola built?"

Question: What is the question to: "Constituting roughly 15% to 20% of households is the upper or professional middle class consisting of highly educated, salaried professionals and managers."? The topic is American middle class.
Answer: "what is middle class in the us?"

Question: What is the question to: "Endodontics (from the Greek endo "inside"; and odons "tooth") is one of the dental specialties recognized by the American Dental Association , Royal College of Dentists of Canada , and Royal Australasian College of Dental Surgeons , and deals with the tooth pulp and the tissues surrounding the root of a tooth ."? The topic is Endodontics.
Answer:
"what is endodontic dentistry?"