In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Q: Police officers arrest criminals , prevent crime , protect and help the public , and keep public order .

A: Police officers are generally charged with the apprehension of criminals and the prevention and detection of crime , protection and assistance of the general public , and the maintenance of public order .
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Q: The variant " Anne " was originally French , although it has been in use in English for hundreds of years .

A: Anna is in wide use in countries across the world as are its variants Anne , originally a French version of the name , though in use in English speaking countries for hundreds of years , and Ann , which was originally the English spelling .
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Q: The volume of mercury in the tube is much less than the volume in the bulb .

A:
It consists of a bulb containing mercury attached to a glass tube of narrow diameter ; the volume of mercury in the tube is much less than the volume in the bulb .
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