Question: Determine the topic of the passage. "Osteonecrosis of the jaws associated with bisphosphonate therapy, required by some cancer treatment regimens, has been identified and defined as a pathological entity since 2003." Topic:
Answer: Osteonecrosis of the jaw

Question: Determine the topic of the passage. "Most unions in America are aligned with one of two larger umbrella organizations: the AFL-CIO created in 1955, and the Change to Win Federation which split from the AFL-CIO in 2005." Topic:
Answer: Labor unions in the United States

Question: Determine the topic of the passage. "Christian Bale reprises the lead role of Bruce Wayne/Batman, with a returning cast of Michael Caine as Alfred Pennyworth , Gary Oldman as James Gordon and Morgan Freeman as Lucius Fox ." Topic:
Answer:
The Dark Knight (film)