Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "Officials: Romney to get Secret Service protection" to the sentence "Obama addresses Secret Service scandal"?

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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 "US soldier accused of Afghan massacre hires prominent criminal lawyer" to the sentence "US soldier accused of killing Afghan civilians identified"?

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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 "The nation's largest retailer has told its 100 top suppliers they have to start using electronic tags on all pallets of goods by Jan. 25, 2005." to the sentence "Wal-Mart has told its top 100 suppliers that they'll need to have radio-frequency ID systems in place for tracking pallets of goods through the supply chain by Jan. 25, 2005."?

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Output: 4

Input: On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "Two people are sailing a small boat." to the sentence "Two women in a sailboat."?

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Output:
4