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"Four hundred miles without a word until you smile, four hundred miles on fields of fire. Less confusingly, there are only seven and a half things you nee..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.com/2012/04/16/seven-and-a-half-things-you-need-to-know_n_1427715.html?ref=business>