Simplify the following text for a Grade 14 native English-speaking person.
Original: The New York Provincial Congress ( 1775-1777 ) was an organization formed by rebels in 1775 , during the American Revolution , as a pro-rebellion alternative to the more conservative Province of New York Assembly , and as a replacement for the Committee of One Hundred .
Simplified: The New York Provincial Congress was an organization that was started by rebels in 1775 during the American Revolution as a replacement for the Province of New York Assembly , and as a replacement for the Committee of One Hundred .