メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.991476364311 43.5560335085321, 144.991049351532 43.5563908135699, 144.990668429663 43.5561189612581, 144.99031700725 43.555887711785, 144.990766996396 43.5555381550933, 144.991476364311 43.5560335085321)) ^^http://www.opengis.net/ont/geosparql#wktLiteral