Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "Egypt increases security before pro-Morsi protests" to the sentence "Egypt bracing for massive protests"?

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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 "A group of girls are exiting a taxi." to the sentence "A video clip of Rihanna leaving a taxi."?

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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 playing keyboards." to the sentence "A man is riding a mechanical bull."?

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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 "The venture owns five oil refineries and more than 2,100 filling stations in Russia and Ukraine." to the sentence "TNK-BP has six oil producing units, five refineries and 2,100 filling stations."?

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Output:
3