question: Why did Sichuan lose its status as the most populous Province in 1997 ?
answer: Chongqing as well as the three surrounding prefectures of Fuling , Wanxian , and Qianjiang were split off into the new Chongqing Municipality .
turker_answer: Sichuan lost its status as the most populous Province in 1997 because Chongqing as well as the three surrounding prefectures of Fuling , Wanxian , and Qianjiang were split off into the new Chongqing Municipality .
rule-based: Sichuan lost its status as the most populous Province in 1997 because Chongqing as well as the three surrounding prefectures of Fuling , Wanxian , and Qianjiang were split off into the new Chongqing Municipality .