メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.731690649105 33.2462068273782, 131.732374562509 33.247430044777, 131.731688192928 33.2477122214743, 131.730130232105 33.2485365605749, 131.728676877198 33.2493013552564, 131.728207809442 33.2488884533295, 131.727876770271 33.2485087653638, 131.72784260626 33.2484632106803, 131.727589308597 33.2481165655637, 131.727469867534 33.247947894052, 131.727339805048 33.2477722042893, 131.727070840345 33.2473958156604, 131.726705480136 33.2468388737925, 131.72844074724 33.2460131515624, 131.730252856116 33.2451371671828, 131.73094947346 33.2448596235377, 131.731690649105 33.2462068273782)) ^^http://www.opengis.net/ont/geosparql#wktLiteral