Given a question and its paraphrases, answer the question. The answer should exactly answer all the questions given without any ambiguity. Don't give partial answers.

Q: Questions: ['what day was titanium discovered?']

A: 1791
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Q: Questions: ["when was john cabot's sons born?"]

A: 1474
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Q: Questions: ['who killed dr martin luther kings jr mother?', "who killed dr martin luther king's mother?", 'who killed the mother of martin luther king jr?']

A:
marcus wayne chenault
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