Q: Sentence (1) An idea is not a unit that can be moved from one brain to another.
Sentence (2) He was a member of a special police unit.. Word: unit.
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A: different meanings

Q: Sentence (1) If you're going to beat your competitors, you need to focus.
Sentence (2) We focused on what to do.. Word: focus.
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A: the same meaning

Q: Sentence (1) I start at eight in the morning.
Sentence (2) The rain started at 9:00.. Word: start.
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A:
different meanings