メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.940892903991 35.1394102381357, 136.940881070719 35.1396136721564, 136.940843372657 35.1400875579016, 136.940808334009 35.1405838438737, 136.940789926874 35.1408626199609, 136.940789412196 35.1408626189918, 136.939710664688 35.1408141032242, 136.939697785231 35.1408134451484, 136.939718906668 35.140531504509, 136.939756700582 35.1400329697532, 136.939791661552 35.1395590784745, 136.93980344594 35.1393667705839, 136.939806329262 35.1393030968615, 136.940039725839 35.139314837064, 136.940039457589 35.1393761882126, 136.940892903991 35.1394102381357)) ^^http://www.opengis.net/ont/geosparql#wktLiteral