Original sentence: Landmark Education LLC (LE) is a personal training and development company which offers educational programs in approximately 115 locations in more than 20 countries worldwide, including major cities such as London, New York, Los Angeles, Sydney, and Toronto
Edited sentence: Landmark Education LLC (LE) is a personal training and development company which offers educational programs in approximately 115 locations in more than 20 countries worldwide, including major cities such as London, New York, Los Angeles, San Francisco, Sydney, and Toronto