メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.303983258537 36.7573636083893, 137.304048803393 36.7571431577477, 137.304186121337 36.7568626381049, 137.304262840156 36.7567613040761, 137.304570489556 36.7568031249504, 137.304783662651 36.7567804191215, 137.305141715676 36.7567276918308, 137.305274614903 36.7567081060643, 137.305389903857 36.7566826971074, 137.305606536533 36.7566374555381, 137.305581864584 36.7565249732875, 137.305777565298 36.7565050311136, 137.305791655481 36.7565669027449, 137.306099234033 36.756563729471, 137.306123957054 36.7567099366346, 137.305945775512 36.7567523172108, 137.306072636057 36.7572241789622, 137.305900447671 36.7572493736716, 137.305382864256 36.7573295356861, 137.305254965849 36.7573811503278, 137.304549750618 36.7574439956668, 137.304151277094 36.7574467776075, 137.303964927455 36.7574253048368, 137.303983258537 36.7573636083893)) ^^http://www.opengis.net/ont/geosparql#wktLiteral