メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.417632172705 43.8119058418675, 142.417619419638 43.8119164745454, 142.41600899046 43.8132767272553, 142.414331007711 43.8147070632893, 142.413161234483 43.8142073904998, 142.412303668828 43.8138752577816, 142.411633374372 43.8134787219672, 142.410937104232 43.8130255389272, 142.409925877215 43.8120972322438, 142.410584625862 43.8117463230755, 142.411234831164 43.8113578188047, 142.411943800733 43.8108213427676, 142.412222705552 43.8105809369475, 142.413047941691 43.8098695990016, 142.413079646998 43.8098432851014, 142.414801868481 43.8084138029906, 142.414866556316 43.8083512686675, 142.414934990282 43.8084270598629, 142.415100610896 43.8086188029672, 142.416653153004 43.8106345254906, 142.417632172705 43.8119058418675)) ^^http://www.opengis.net/ont/geosparql#wktLiteral