Q: Sentence (1) I couldn't tell what the thing was.
Sentence (2) To say the same thing in other terms.. Word: thing.
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A: different meanings

Q: Sentence (1) A chain of mountains.
Sentence (2) The third link of the silver chain needs to be resoldered.. Word: chain.
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A: the same meaning

Q: Sentence (1) We could always call on a friend.
Sentence (2) Call roll.. Word: call.
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A:
different meanings