Complex sentence: David Aaronson is born in the early 1900s into poverty in a Jewish enclave in Brooklyn and later forms a gang with his friends Phillip "Cock Eye" Stein, Patrick "Patsy" Goldberg and a young boy named Dominic.
Split into simpler sentences: David Aaronson is born in the early 1900s into poverty in a Jewish enclave in Brooklyn. Noodles later forms a gang with his friends Phillip "Cock Eye" Stein, Patrick "Patsy" Goldberg and a young boy named Dominic.