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]: The atomic radius of an element is the distance between the nucleus and the edge of the electron cloud .
[A]: The atomic radius of a chemical element is a measure of the size of its atoms , usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons .


[Q]: In positive psychology , researchers are studying what gives a person satisfaction in life .
[A]: In positive psychology , social scientists study what might contribute to living a good life , or what would lead to people having increased positive mood and overall satisfaction with their life .


[Q]: The 2012 D.C. United is the seventeenth season for D.C. United playing in Major League Soccer .
[A]:
The 2012 D.C. United season was the club 's seventeenth season of existence , and their seventeenth consecutive season of playing in Major League Soccer , the top division of American soccer .