メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.577290297589 34.8422582104555, 136.577870465573 34.8427702741228, 136.579055760671 34.8437690615125, 136.578425224309 34.844277731798, 136.578189574245 34.8444656267551, 136.577767502144 34.8448089238942, 136.577531730217 34.8449861134281, 136.577307792145 34.8451697256463, 136.576666339996 34.845684074738, 136.575513782486 34.8447184886716, 136.5746703505 34.8440196192476, 136.574262732021 34.8436822297154, 136.575148546272 34.8429484849367, 136.576648018024 34.8417319317747, 136.576852868594 34.8419030824254, 136.577290297589 34.8422582104555)) ^^http://www.opengis.net/ont/geosparql#wktLiteral