メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.863055941499 35.4102900854993, 136.863513835596 35.4102506113465, 136.863625381457 35.4109571404307, 136.863810040406 35.4121359502983, 136.863857815054 35.4124257086662, 136.863885639103 35.4126218284487, 136.863972277512 35.4131866751179, 136.863988011144 35.413349844241, 136.86324960414 35.4133662181004, 136.862751039207 35.4133790060682, 136.862684616153 35.4133771126866, 136.862608130149 35.4133749828636, 136.861891668207 35.4134001374755, 136.862083513563 35.41197912146, 136.862293642901 35.4103592075146, 136.863055941499 35.4102900854993)) ^^http://www.opengis.net/ont/geosparql#wktLiteral