One day the wolf was slaking his thirst at a stream when he chanced to see a lamb, also drinking, at some distance down the stream. Outraged, he growled, You ar

One day the wolf was slaking his thirst at a stream when he chanced to see a lamb, also drinking, at some distance down the stream. Outraged, he growled, "You are muddying my drinking water, now I shall eat you." The lamb protested, "But, Sir, how can I be muddying your drinking water? I am farther down stream than you are. The water is flowing from your part of the stream to where I am." "Upstream or downstream, your drinking is muddying my water, and I shall eat you." So saying, the wolf leaped upon the lamb and devoured him

1. What is the purpose of the text?
2. What is the generic structure of the text?
3. Why did the wolf get angry?