メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.959852399964 37.6396139340025, 138.96050840411 37.6394514410447, 138.961108416671 37.6392748024449, 138.962289880048 37.6389489027807, 138.962821599432 37.6401857481417, 138.962936373519 37.6404218208604, 138.963032416559 37.6405568811191, 138.963365757609 37.6410210155544, 138.963707246071 37.6414852594313, 138.963303940541 37.6415863795992, 138.96283357544 37.6417015599203, 138.962224904356 37.6418548697128, 138.962492156657 37.6425039784456, 138.962743261633 37.6430964132491, 138.962941281917 37.6435579815744, 138.961732752084 37.6438920186626, 138.960768431578 37.6441570886309, 138.960482161474 37.6442761842902, 138.959670730795 37.6423749173483, 138.959108394168 37.6410549739296, 138.958638923825 37.6399554188373, 138.959279670993 37.6397803214187, 138.959852399964 37.6396139340025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral