Original sentence: It has entered national popular culture through television series like ''The O.The term 909er is often used disparagingly by Los Angeles and Orange County residents, as a shorthand reference to someone from the northern "Inland Empire" area.While parts of the 909 remain relatively impoverished and underdeveloped, there are also cities such as Claremont, Diamond Bar, and Upland that are some of Los Angeles' most affluent suburbs.as a reference to the poorer, hotter, and more rural inland regions in contrast to the suburban and wealthy Orange County
Edited sentence: The term 909er is often used disparagingly by Los Angeles and Orange County residents, as a shorthand reference to someone from the northern "Inland Empire" area, which is considerably poorer and less urbanized than either of those two areas.While most of the San Bernardino County portion of the area code remains relatively impoverished and underdeveloped, the Los Angeles County portion includes cities such as Claremont and Diamond Bar that are some of Los Angeles' most affluent suburbs