The laundrymen wash the clothes of the barbers and restaurant waiters, the restaurant waiters wait upon the laundrymen and barbers while they eat, and the barbers cut the hair of the laundrymen and waiters.

• 洗衣匠洗理发匠和餐馆堂倌的衣服，餐馆堂倌侍候洗衣匠和理发匠吃饭，而理发匠则替洗衣匠和堂倌理发，那便是文化。