メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.709654474504 35.3613857967337, 136.707585369734 35.361517963706, 136.707547836565 35.3609815573431, 136.705474436945 35.3610907131401, 136.705434274548 35.3605585214179, 136.705380728822 35.3595243097053, 136.705298553043 35.3584607632804, 136.707369803924 35.3583614632532, 136.70944701989 35.3582629248891, 136.709654474504 35.3613857967337)) ^^http://www.opengis.net/ont/geosparql#wktLiteral