(A) Fees for the utilization of a water closet, which were expressed by units of 50 Mongolian Tg in the right side and 5 Japanese Yen in the left upper side. The word "Hairu," consisting of both Japanese Kanji- and Hiragana-scripts, was wrong, and the word "Ireru" was correct.

(B) An unused water closet, one day after being dug by several Mongolian students.