Complex sentence: The lack of major landmarks in the neighborhood coupled with its small size have caused Briarwood to remain relatively unknown; many lifelong-residents of Queens have never heard of it and the local ZIP Code 11435 is actually designated as Jamaica.
Split into simpler sentences: The lack of major landmarks in the neighborhood coupled with its small size have caused Briarwood to remain relatively unknown. The local ZIP Code 11435 is actually designated as Jamaica.