<http://schema.org/telephone>
"+1-800-570-5744"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.insidemortgagefinance.com/issues/imfpubs_igse/14_24/fullpdf/Inside-The-GSEs-full-issue-Nov-28-2014-1000029898-1.html>