メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998534569173 34.875721466243, 136.998054694948 34.8762866307591, 136.997855498436 34.8765108121956, 136.997589520316 34.876277882926, 136.997294036302 34.8760042028042, 136.997029164598 34.8757118298444, 136.996298675586 34.8748666305929, 136.995883387058 34.874349653463, 136.996568389171 34.8740321375756, 136.997259573809 34.8736974417418, 136.997416712313 34.8739572645833, 136.997891477972 34.8738440423483, 136.998534569173 34.875721466243)) ^^http://www.opengis.net/ont/geosparql#wktLiteral