<http://schema.org/keywords>
"unit.a"^^<http://www.w3.org/2001/XMLSchema#string>
<http://actoutwithaislinn.bangordailynews.com/2013/07/23/one-minute-hikes/1-minute-hike-birch-point-trail-maine-coastal-islands-national-wildlife-refuge-in-steuben/>