メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.658262875472 42.8283575045418, 141.657352569773 42.8287091674294, 141.656938347427 42.8288685755975, 141.656688568616 42.8288835260823, 141.656673808576 42.82895314957, 141.656646919506 42.8290270709902, 141.656582068939 42.8291435578509, 141.656513772791 42.8292008759929, 141.656431136874 42.8292686698286, 141.656341584591 42.8293154687051, 141.655767403444 42.8295289012692, 141.655077120546 42.8297720396489, 141.654577984486 42.8290659721828, 141.654325942634 42.8286897853412, 141.65406618189 42.8282720610777, 141.65464670671 42.8280690094667, 141.655268156785 42.8278426060524, 141.65593297934 42.8275867437857, 141.656868300014 42.8272463330905, 141.657327890358 42.8270775953127, 141.657835161239 42.8268936288004, 141.657857293079 42.8269073887053, 141.658007230216 42.8270007229441, 141.658139494843 42.8271235059159, 141.658310779815 42.8273128851463, 141.658442564648 42.8274860945101, 141.658551410645 42.8276100213249, 141.658664935631 42.8278044456627, 141.658732074889 42.8279534774202, 141.658754812279 42.8281741592228, 141.658262875472 42.8283575045418)) ^^http://www.opengis.net/ont/geosparql#wktLiteral