メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.98228496992 37.8785217401241, 138.982394422948 37.8786035110533, 138.982673413204 37.8788363510741, 138.98228767346 37.879137231432, 138.981909382241 37.8794849618829, 138.981515192066 37.8798395127849, 138.980902757522 37.880381066208, 138.980595632399 37.8807078071665, 138.980209978423 37.8804679299923, 138.97987662546 37.8803228691241, 138.978462560618 37.8797727890022, 138.978860132771 37.8792930763395, 138.979252318445 37.8788323922645, 138.97967395555 37.8791798257032, 138.980019995853 37.8789248680538, 138.98036676246 37.8786656862087, 138.980705045911 37.878407098397, 138.98106262304 37.8781453353498, 138.981474808011 37.8778411131981, 138.98180213735 37.8781200824656, 138.981990829058 37.8782807922053, 138.98228496992 37.8785217401241)) ^^http://www.opengis.net/ont/geosparql#wktLiteral