Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "Syria rebels attack Lebanese post near border: army" to the sentence "Turkish army stages tank exercises near Syria border"?

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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 person is skijoring with a dog in the mountains." to the sentence "A brown dog is playing with a ball in the water."?

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Output: 0

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

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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 "An hour later, an Israeli helicopter fired missiles at a car in Gaza City, killing two Hamas officials and at least five other people." to the sentence "An hour later Israeli attack helicopters rained missiles on a car in Gaza City, killing seven people, Palestinian sources said."?

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Output:
4