メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.813973655397 35.3157266398296, 136.813977751179 35.3158536270671, 136.813992207151 35.315943318979, 136.814030770031 35.3160316018014, 136.814118011445 35.3162286917204, 136.812592693964 35.3166476349075, 136.812394592376 35.3161392977068, 136.812212143257 35.3156622034361, 136.812828823056 35.3155001287266, 136.813924873537 35.3152119800336, 136.814097512579 35.3151744539472, 136.814062480559 35.3153392838003, 136.814035977998 35.315463859005, 136.813973655397 35.3157266398296)) ^^http://www.opengis.net/ont/geosparql#wktLiteral