メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.92805160505 35.0922038447692, 136.927950747521 35.0924242950679, 136.927688068579 35.0923413055785, 136.927221637442 35.0922354470287, 136.926729625865 35.09211714085, 136.926112366587 35.0919772443159, 136.926149343769 35.0919084392877, 136.926318812443 35.091495720205, 136.926699283516 35.0915919045858, 136.927023853236 35.0914997242035, 136.928303557317 35.091797905296, 136.928278925548 35.0918568039303, 136.928249066101 35.0918717464805, 136.92805160505 35.0922038447692)) ^^http://www.opengis.net/ont/geosparql#wktLiteral