Question: Meanwhile the third ship is in use
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Answer: Meanwhile, the third ship is in use.

Question: for any other stuff in the room including stuff on the floor
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Answer: for any other "stuff" in the room, including stuff on the floor.

Question: In the Quest of the Man about males men and gentlemen
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Answer: In the Quest of the Man, about males, men and gentlemen

Question: 3 We have only use the aluminium frame instead of iron frame to avoid corrosion
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Answer:
3. We have only use the aluminium frame instead of iron frame to avoid corrosion.