メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.608200860114 34.5276093945376, 136.60584879213 34.5273638838102, 136.605812339783 34.5275125322079, 136.604713968751 34.527310915093, 136.604951222142 34.5258029453055, 136.605062699374 34.5256436415408, 136.606876400443 34.5258573354693, 136.608566187764 34.5259455503282, 136.608397098411 34.527070044545, 136.608276298837 34.5270878314629, 136.608200860114 34.5276093945376)) ^^http://www.opengis.net/ont/geosparql#wktLiteral