If dusty winds are blowing from the south, he should close the windows on the southern side. If the weather is cold, he should open the windows during the day and close them at night. If the weather is hot, he should close the windows during the day and open them at night. If the yard is dirty, he should sweep it. If the gatehouse is dirty, he should sweep it. If the assembly hall is dirty, he should sweep it. If the water-boiling shed is dirty, he should sweep it. If the restroom is dirty, he should sweep it. If there is no water for drinking, he should get some. If there is no water for washing, he should get some.