The crow drink water renewal

　　Since the last, the crow with stones from the bottle inside to get water to drink, people praised the crow smart. The crow is proud, decided to run a school teach animals how to drink water.

　　House after school, the crows would put up some announcements in the forest, it read: new crow school, free to teach animals in the forest how to drink water.

　　After the announcement posted, a crow sat waiting at the school. After a while, a deer said: "I and my companions to the riverside to drink water, were" outed "eaten by crocodiles. Have you such a school is really great!" Then come over some animals: little rabbit, goats, birds... They are water under attack, to the crow drink water study skills.

　　The crow of ?