Original sentence: The three largest denominations, known in in the United States as Orthodox, Conservative, and Reform, originated in the Haskalah (Jewish Enlightenment) and its aftermath, and were shaped by the experience of Jewish immigration to the United States
Edited sentence: Orthodox is a general term applied to Jews who continue to adhere to traditional halacha, while Conservative, and Reform, originated in the Haskalah (Jewish Enlightenment) and its aftermath, and were shaped by the experience of Jewish immigration to the United States