Q: Determine the topic of the question. Question: "what happened to stevie ray vaughan?" Topic:
A: Stevie Ray Vaughan

Q: Determine the topic of the question. Question: "how many lungs does a human have?" Topic:
A: Human lung

Q: Determine the topic of the question. Question: "what is considered a large car?" Topic:
A: Full-size car

Q: Determine the topic of the question. Question: "how was color introduced in film??" Topic:
A:
Color motion picture film