メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.293792633327 43.1142669849129, 141.294511210362 43.1138748507195, 141.294725081876 43.1140848792191, 141.296158876435 43.1154372955544, 141.296254884681 43.1155416190279, 141.295582843519 43.1158976512514, 141.294431261645 43.1165142562102, 141.294046938361 43.1161653825674, 141.293988570478 43.116109969161, 141.293747629814 43.1158810061781, 141.293452922289 43.1155971597972, 141.2931912026 43.1153466429646, 141.29312272949 43.1152805951196, 141.292870209936 43.1154192128484, 141.29243437623 43.1149949327273, 141.292827279605 43.1147799165472, 141.293792633327 43.1142669849129)) ^^http://www.opengis.net/ont/geosparql#wktLiteral