instruction:
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.
question:
Compass-and-straightedge or ruler-and-compass construction is drawing of lengths , angles or shapes using only a ruler and compass .
answer:
Straightedge and compass construction , also known as ruler-and-compass construction or classical construction , is the construction of lengths , angles , and other geometric figures using only an idealized ruler and compass .


question:
A blood feud is a feud with a cycle of retaliatory violence , with the relatives of someone who has been killed or otherwise wronged or dishonored .
answer:
A blood feud is a feud with a cycle of retaliatory violence , with the relatives or associates of someone who has been killed or otherwise wronged or dishonored seeking vengeance by killing or otherwise physically punishing the culprits or their relatives .


question:
In mathematics a loss function or cost function is a mathematical function that maps an event , or the values of one or more variables onto a real number .
answer:

In mathematical optimization and decision theory , a loss function or cost function is a function that maps an event or values of one or more variables onto a real number intuitively representing some " cost " associated with the event .


