メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.722080790396 34.4887368953188, 135.720914771947 34.4887364873556, 135.720922371631 34.4881178187611, 135.721715162576 34.4881335757354, 135.721712078534 34.487831127918, 135.722089258986 34.4878394543101, 135.722092038296 34.4875253276876, 135.722482045465 34.4875246683523, 135.722489374434 34.4884696184739, 135.72249404442 34.4887369944403, 135.722080790396 34.4887368953188)) ^^http://www.opengis.net/ont/geosparql#wktLiteral