メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.015926811947 35.4132328198615, 137.017156007796 35.4132218663265, 137.017176329677 35.4139608736999, 137.015936608515 35.4139656530995, 137.015962249551 35.414343715541, 137.015970434691 35.4151680607361, 137.014548187551 35.4151571371526, 137.014542295119 35.4148082891254, 137.014540793749 35.4147201533563, 137.014536479985 35.4144646179911, 137.014538640186 35.4143271200943, 137.014525407765 35.4139700949577, 137.014526100542 35.4136017135165, 137.014525426286 35.4132230839459, 137.015025432723 35.4132214315898, 137.015926811947 35.4132328198615)) ^^http://www.opengis.net/ont/geosparql#wktLiteral