Original sentence: Its ancient inhabitants called themselves Nairi and the city was a major Armenian center.The early settlements are believed to have centered on the steep-sided bluff now known as Van Castle (Van Kalesi), close to the edge of Lake Van and a few kilometers west of the modern city
Edited sentence: Its ancient inhabitants called themselves Nairi.The early settlement was centered on the steep-sided bluff now known as Van Castle (Van Kalesi), close to the edge of Lake Van and a few kilometers west of the modern city