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]: Raymond Aubrac ( 31 July 1914 – 10 April 2012 ) was a French engineer and leader .
[A]: Raymond Aubrac ( 31 July 1914 – 10 April 2012 ) was a leader of the French Resistance during the Second World War and a civil engineer after the Second World War .


[Q]: 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 .
[A]: 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 .


[Q]: The European Article Number ( often shortened to " EAN " ) is a standard to do it barcodes .
[A]:
The International Article Number ( also known as European Article Number or EAN ) is a standard describing a barcode symbology and numbering system used in global trade to identify a specific retail product type , in a specific packaging configuration , from a specific manufacturer .