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.

The College Board Advanced Placement Program is a program that gives high school students a chance to take college level classes for a fee , preparing them for college .
The College Board 's Advanced Placement Program is an extensive program that offers high school students the chance to participate in what College Board describes as college-level classes for a fee , reportedly broadening students ' intellectual horizons and preparing them for college work .

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

He was the world heavyweight champion from 1937 to 1949 .

He reigned as the world heavyweight champion from 1937 to 1949 , and is considered to be one of the greatest heavyweight boxers of all time .