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.

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

Philosophy of mind is the branch of philosophy that studies the nature of the mind and how it is linked to the body .
Philosophy of mind is the branch of philosophy that studies the nature of the mind , mental events , mental functions , mental properties , consciousness and their relationship to the physical body .

UWA started a Second Life project in mid-2009 .

In mid-2009 , UWA launched its project in " Second Life " ( a 3D online virtual world open to the public , free of charge ) .