メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.330346282713 37.4067267035535, 140.330499150706 37.4067505595565, 140.3305249875 37.4067674890918, 140.330540769344 37.4067851618597, 140.330536549115 37.4068209422676, 140.330518942509 37.4068674784491, 140.330517045441 37.4069139505263, 140.330499402427 37.4069549955759, 140.330481772454 37.4069980121653, 140.329964845361 37.4070018698869, 140.329934858816 37.4066708428344, 140.330017582638 37.4066830268033, 140.330084763331 37.4066934448401, 140.330176539052 37.4067000994789, 140.330346282713 37.4067267035535)) ^^http://www.opengis.net/ont/geosparql#wktLiteral