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strip: //a[starts-with(@name, 'em')]
strip: //div[@id='cnnCVP2']
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test_url: http://edition.cnn.com/2011/US/04/29/severe.weather/index.html
test_url: http://edition.cnn.com/2013/08/15/world/africa/nigeria-boko-haram-commander-killed/index.html?eref=edition
test_url: http://rss.cnn.com/rss/edition.rss
test_url: http://rss.cnn.com/rss/edition_technology.rss