Original sentence: VBS USY actually consists of seven groups - Bonim - Grades K and 1, Machar - Grades 2 and 3, Kadima, which is for children in the 4th - 6th grades, Junior USY for teenagers in the 7th - 8th grades, Senior USY, which is for teenagers in the 9th - 12th grades, Yoetzim Leadership Program - Grades 8 - 12, and B'Yachad Special Needs Youth Group - Ages 11 - 18
Edited sentence: VBS USY actually consists of seven groups - Bonim - Grades K and 1, Machar - Grades 2 and 3, Kadima, which is for children in the 4th - 6th grades, Junior USY for teenagers in the 7th - 8th grades, Senior USY, which is for teenagers in the 9th - 12th grades, Yoetzim Leadership Program - Grades 8 - 12, and B'Yachad Special Needs Youth Group - Ages 11 – 18