On DutyI'm on duty todayOn dutytodayI clan th blackboardClanth blackboardI swp th floorSwp th floorI turn off th lightTurn off th lightI clos th doorClos th door
On DutyI'm on duty todayOn dutytodayI clan th blackboardClanth blackboardI swp th floorSwp th floorI turn off th lightTurn off th lightI clos th doorClos th door