メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.320140640504 38.2794689057231, 140.320792968595 38.2807628294282, 140.321087929511 38.2813718546817, 140.321193562975 38.2816081188292, 140.321308337022 38.2820627707954, 140.321314524551 38.2824285406147, 140.321316303755 38.28249316605, 140.32134232568 38.2832778392187, 140.32044361232 38.2831066837756, 140.319642705271 38.2830916498783, 140.319338141767 38.282509326799, 140.319086702502 38.2820235275609, 140.318605288626 38.2810932700626, 140.318295804422 38.280495295951, 140.318088955394 38.280095564984, 140.317893656097 38.2796856075472, 140.317656827963 38.2791883246979, 140.317464480299 38.2787844331392, 140.318922271037 38.2783317285129, 140.319488915227 38.2781558357802, 140.320154735044 38.2794646036653, 140.320140640504 38.2794689057231)) ^^http://www.opengis.net/ont/geosparql#wktLiteral