メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.90366051356 43.8248127592495, 143.904221712065 43.8245317743906, 143.904746227366 43.8242659618676, 143.905844671586 43.8237093528968, 143.906870359002 43.824763527049, 143.907881136559 43.8258110677021, 143.90890181807 43.8268710778736, 143.909344950946 43.8273205733023, 143.909822882336 43.8278053905604, 143.908573364251 43.8284427085163, 143.906999116256 43.8292455961927, 143.904169006551 43.8306715844895, 143.900775267883 43.8271725328846, 143.900173334149 43.8265836236478, 143.901424788268 43.8259491310128, 143.901949839034 43.8256829177923, 143.90210309994 43.8256052317291, 143.90366051356 43.8248127592495)) ^^http://www.opengis.net/ont/geosparql#wktLiteral