メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.632892582741 42.8543294445618, 141.633734266239 42.8540181191287, 141.633942522546 42.8543395350399, 141.634880453922 42.8557870326324, 141.635015422803 42.8559953096993, 141.634615140206 42.8561421213592, 141.634568990054 42.8561591039642, 141.634558486666 42.8561627763121, 141.634474064938 42.8561927047939, 141.63325065399 42.856627100014, 141.633102878449 42.8566782092362, 141.632677383889 42.8568360594509, 141.631481576013 42.8572707253777, 141.631193097932 42.8568555399084, 141.630940434507 42.8564968135034, 141.630682657051 42.8561144271005, 141.630424773654 42.855747723774, 141.630144784583 42.8553455929024, 141.630599773775 42.8551773598761, 141.63143111772 42.8548699340012, 141.632892582741 42.8543294445618)) ^^http://www.opengis.net/ont/geosparql#wktLiteral