 ይህ እራሱን ለመከላከል እና ሁሉንም ወደ ውጭ የሚያከናውኑትን ነገሮች ዝመናዎች ሁሉ እንዲያገኝ በርሱ የተገነባ ነበር.
It was built to keep the citizens from getting in the restricted area, and to keep anything that was born inside from getting out.