讀句子，猜謎語。
1. It's long. It has no legs. It lives in a hole.
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2. It's tall. It has a long neck. It eats leaves. It walks slowly.
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3. It's black and white. It has two big black eyes. It's fat. It eats bamboos (竹子).
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4. It looks like a horse but it has stripes. The stripes are black and white. It eats grass.
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