TASK DEFINITION: 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.
PROBLEM: Xu Chongde ( 15 January 1929 – 3 March 2014 ) was a Chinese legal expert , professor and political scientist .

SOLUTION: Xu Chongde ( 15 January 1929 – 3 March 2014 ) was a well-known legal expert and professor , political scientist , and the member of the Communist Party of China in the People 's Republic of China .

PROBLEM: Many people call all sparkling wines " champagne " but according to trade laws , only sparkling wine from the Champagne region can be called champagne .

SOLUTION: Many people use the term " Champagne " as a generic term for sparkling wine but in some countries , it is illegal to label any product " Champagne " unless it both comes from the Champagne region and is produced under the rules of the appellation .

PROBLEM: In a graph where all the edges have the same weight , every tree is a minimum spanning tree .

SOLUTION:
There may be several minimum spanning trees of the same weight ; in particular , if all the edge weights of a given graph are the same , then every spanning tree of that graph is minimum .