Original sentence: The City of Thousand Oaks along with Newbury Park were part of a master planned city, created by the Janss Corporation, which created other master planned cities, such as much of the Westside in Los Angeles, like Westwood, and Yorba Linda in Orange County, California.The city forms the most populated part of a regional area called the Conejo Valley, which includes Thousand Oaks proper, Newbury Park, Westlake Village, Agoura Hills, Agoura, and Oak Park
Edited sentence: The City of Thousand Oaks along with Newbury Park were part of a master planned city, created by the Janss Corporation, which created other master planned cities, such as much of the luxurious, expensive Westside in Los Angeles, like Westwood, and Yorba Linda in Orange County, California.The city forms the most populated part of a regional area called the Conejo Valley, one of the most affluent areas in the country, which includes Thousand Oaks proper, Newbury Park, Westlake Village, Agoura Hills, Agoura, Oak Park and parts of Calabasas