メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.107252682528 43.8191082686069, 144.106143316304 43.8194564996329, 144.105942487588 43.8195195375364, 144.105838800446 43.8195520758127, 144.105224766611 43.8197448542642, 144.104814251092 43.8198736518454, 144.104583006352 43.8194815971693, 144.105898967787 43.8190743292751, 144.105633997743 43.8186595833658, 144.105504549256 43.8184436090362, 144.106545021016 43.8180475417743, 144.107438729668 43.8176982439745, 144.107915310593 43.8175396513655, 144.107886106778 43.8176313667527, 144.10774411702 43.8180756924367, 144.107655151364 43.8183071571597, 144.107252682528 43.8191082686069)) ^^http://www.opengis.net/ont/geosparql#wktLiteral