メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929154545614 34.8866366679583, 136.929559684238 34.8872002785858, 136.929743135862 34.8871509840131, 136.929864587994 34.8874806979967, 136.929737649609 34.887531089727, 136.929634582538 34.887572301942, 136.929485022278 34.8876278608367, 136.929253222429 34.8876890334703, 136.929018351299 34.8877257603755, 136.928505321211 34.8877832105257, 136.928212675077 34.8878260905856, 136.927868072097 34.887167441192, 136.927595933234 34.886671559751, 136.928874033479 34.8863920016159, 136.929154545614 34.8866366679583)) ^^http://www.opengis.net/ont/geosparql#wktLiteral