<http://schema.org/thumbnailUrl>
<http://www.providencejournal.com/apps/pbcsi.dll/bilde?Site=PJ&amp;Date=20131226&amp;Category=OPINION&amp;ArtNo=312269994&amp;Ref=AR>
<http://www.providencejournal.com/opinion/letters-to-the-editor/20131226-john-r.-carbon-no-comparison-between-minn.-and-r.i..ece>