メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.624605322522 36.4462982837341, 136.623324926306 36.4470861995069, 136.622552462356 36.4476469477818, 136.62013175447 36.4462630551963, 136.620155457773 36.446051411698, 136.620230748652 36.4455722791846, 136.620412448838 36.4449864379013, 136.620527927799 36.4446857254507, 136.624605322522 36.4462982837341)) ^^http://www.opengis.net/ont/geosparql#wktLiteral