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.

Input: Consider Input: A maternal insult ( also referred to as a " yo mama " joke ) is a reference to a person 's mother .

Output: A maternal insult ( also referred to as a " yo mama " joke ) is a reference to a person 's mother through the use of phrases such as " your mother " or other regional variants , frequently used to insult the target by way of their mother .

Input: Consider Input: Unsportsmanlike conduct ( or unsporting behaviour , or ungentlemanly conduct ) describes a kind of action by professional sportspeople .

Output: Unsportsmanlike conduct ( also called unsporting behaviour or ungentlemanly conduct or bad sportsmanship or poor sportsmanship or anti fair-play ) is a foul or offense in many sports that violates the sport 's generally accepted rules of sportsmanship and participant conduct .

Input: Consider Input: The four-stroke engine is an internal combustion engine .
Output: A four-stroke ( also four-cycle ) engine is an internal combustion ( IC ) engine in which the piston completes four separate strokes while turning the crankshaft .