メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.402611015471 35.3618271833828, 135.403197242522 35.3620786683359, 135.40377711534 35.362547719843, 135.403812616895 35.3628780275118, 135.403782828763 35.363060481136, 135.403267318969 35.3628714592765, 135.402090199726 35.3623645194199, 135.402263371732 35.362031301522, 135.402449903674 35.3618108225462, 135.402611015471 35.3618271833828)) ^^http://www.opengis.net/ont/geosparql#wktLiteral