メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.987998767927 34.8919961541075, 136.988021706806 34.8925538460458, 136.988022450103 34.8928471847776, 136.987981971748 34.8933819635133, 136.987940035038 34.8936286148924, 136.98752923145 34.8935780026375, 136.987094349032 34.8935455246444, 136.987083774457 34.8933329531138, 136.986969836315 34.8927432218648, 136.98683349616 34.8919858352085, 136.986837134333 34.8919099177442, 136.986874923388 34.8917441838717, 136.986903405398 34.8915591387881, 136.986858312995 34.8907765330225, 136.987228726794 34.8907624340107, 136.987920802736 34.8907243000236, 136.987984162774 34.8917345589567, 136.987993641666 34.8918175382546, 136.987998767927 34.8919961541075)) ^^http://www.opengis.net/ont/geosparql#wktLiteral