メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.053675866187 39.361321528458, 141.053272081941 39.3612283417459, 141.052578045468 39.3612233880431, 141.051771028271 39.3612186423098, 141.051367424219 39.3611818187488, 141.050915464239 39.3611701381561, 141.049998398605 39.3575775408406, 141.050732639707 39.3575511182726, 141.051168283948 39.3575127231815, 141.053043740423 39.357293076152, 141.053200312419 39.3583139154989, 141.053675866187 39.361321528458)) ^^http://www.opengis.net/ont/geosparql#wktLiteral