メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.366538824976 43.104265179632, 141.366859310372 43.1043115329365, 141.367130687928 43.1043487871139, 141.367490192698 43.104398252249, 141.367657650013 43.1044202868965, 141.367507451129 43.105019781064, 141.367457803314 43.1052016122935, 141.36692552532 43.105132109607, 141.366897935105 43.1051284511715, 141.366342267836 43.1050503255554, 141.366185588567 43.1049929271468, 141.365968081367 43.1049471557645, 141.36530340715 43.1048539795094, 141.365289713562 43.1048517638071, 141.365479494814 43.1041114342258, 141.366180218889 43.1042133977845, 141.366538824976 43.104265179632)) ^^http://www.opengis.net/ont/geosparql#wktLiteral