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Many years ago a rich man named Llewellyn lived in the mountains in Wales.He had a little son who was two years old. Gelert, a large dog, was always near the boy. He was ready to protect him at any moment.
One morning Llewellyn went hunting without Gelert. But the hunt was not good. When Llewellyn came back home, Gelert came running to meet him. There was blood on his face and head. Llewellyn hurried to the room where the child slept. The child could not be seen in the room. The bed, chairs and tables were overturned. Here and there he could see blood on the floor. Llewellyn turned to Gelert and said:' You have killed my child'. So he killed the dog. But a few minutes later he found his son in his overturned bed. He was all right. Then he saw the body of a large grey wolf in the dark corner of the room. Then Llewellyn understood everything. Gelert had killed the wolf before it attacked the child.
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Why did Llewellyn kill the dog?