メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.488298250129 33.1558070458465, 130.488574962589 33.1560840194252, 130.487879518474 33.1561477387426, 130.487845668798 33.1560702652693, 130.48783326176 33.1560362243748, 130.487494936918 33.1560362429894, 130.487381941732 33.156045272031, 130.487246730048 33.1559424596205, 130.487341284777 33.1558276140343, 130.487385037089 33.1557207130382, 130.487430410278 33.1557100156052, 130.487508111156 33.1557067063514, 130.487498399693 33.1555179192049, 130.487712229099 33.1554806850486, 130.487772624258 33.1554791368602, 130.48782858055 33.1555065773787, 130.488298250129 33.1558070458465)) ^^http://www.opengis.net/ont/geosparql#wktLiteral