"stamen":"Map tiles by <a href='http://stamen.com'>Stamen Design</a>, under <a href='http://creativecommons.org/licenses/by/3.0'>CC BY 3.0</a>. Data by <a href='http://openstreetmap.org'>OpenStreetMap</a>, under <a href='http://creativecommons.org/licenses/by-sa/3.0'>CC BY SA</a>.",