メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.83550297815 35.3862562382803, 136.835326115152 35.3862402671216, 136.834937725276 35.3861900629015, 136.834823982172 35.3861948952687, 136.834469896547 35.3862509041923, 136.832975718198 35.3869306824329, 136.832617836333 35.385757487311, 136.832330819845 35.3846320947468, 136.83228421036 35.384299444124, 136.833213502438 35.3840962202316, 136.83397856055 35.3839637358918, 136.834039775628 35.3844425464722, 136.835545684293 35.384308263082, 136.835870696359 35.3844048435589, 136.835854408533 35.3849080180682, 136.835859565691 35.3851925976848, 136.835807682421 35.3855210352426, 136.83550297815 35.3862562382803)) ^^http://www.opengis.net/ont/geosparql#wktLiteral