メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929029579695 35.0937788357735, 136.92883251182 35.0937092884301, 136.928180979079 35.0934365077685, 136.928058172977 35.0933987283414, 136.927568799901 35.0932683162763, 136.927840698174 35.0926828980334, 136.92791589808 35.0925062032864, 136.927950747521 35.0924242950679, 136.92805160505 35.0922038447692, 136.929430743088 35.0926884910093, 136.929599220966 35.0927476990543, 136.929228096425 35.0934518791273, 136.929204486425 35.0934909196473, 136.929029579695 35.0937788357735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral