Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "China sets Bo Xilai trial date" to the sentence "China Bo Xilai trial in fourth day"?

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Output: 3

Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "Russia Destroys Over 75% of Its Chemical Weapons Stockpile" to the sentence "Britain Sees Evidence Assad Could Use Chemical Weapons"?

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Output: 1

Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "A brown dog sits on the beach." to the sentence "A dog running on the beach"?

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Output: 2

Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "A man is spinning." to the sentence "A man is dancing."?

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Output:
2