メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.893737993791 38.1785129494163, 140.893728729619 38.1789048863598, 140.893671942724 38.1793946886236, 140.89307117626 38.1803521524405, 140.892011913318 38.1809253658648, 140.890662410412 38.1812775420149, 140.890605576037 38.1802584601234, 140.89057694249 38.1798340204048, 140.890538491321 38.1789638747622, 140.890475345046 38.1777443229892, 140.890472348659 38.1777034976135, 140.893660247606 38.1775021849042, 140.893651444106 38.1777669972289, 140.893737993791 38.1785129494163)) ^^http://www.opengis.net/ont/geosparql#wktLiteral