Internal farms

(Internal farms)
(picture source：photo by this team)

　　Since at first the food at prison was not very good or sufficient, so a plot of land behind the third and fourth factories was used as a vegetable garden so the inmates would have more to eat. Farming became a part of the daily lives of the inmates. Some vegetables are also sold, and the money could be used to improve the food problem.

(Internal farms.)
(picture source：photo by this team)