TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: The BPI ( British Recorded Music Industry ) Limited , commonly known as the British Phonographic Industry or BPI , is the British recorded music industry 's trade association .

SOLUTION: The British Phonographic Industry ( BPI ) is the British record industry 's trade association .

PROBLEM: The Church of North India ( CNI ) , the dominant United denomination in northern India , is a united church established on 29 November 1970 by bringing together the Anglican and Protestant churches working in northern India ; it is a province of the worldwide Anglican Communion .

SOLUTION: It is a united church established on 29 November 1970 by bringing together the main Protestant churches working in northern India ; it is a province of the worldwide Anglican Communion .

PROBLEM: 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 .

SOLUTION:
He was the world heavyweight champion from 1937 to 1949 .