メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.431433385389 43.0537179979574, 141.430652919075 43.0537476528927, 141.430170464627 43.0537668479353, 141.429707792693 43.0537841418023, 141.429281491537 43.0537995149513, 141.429079981711 43.0538081283192, 141.429475130388 43.0532585859402, 141.429480600586 43.0532511001313, 141.42982271481 43.0527804389538, 141.429955571891 43.0525977574891, 141.430106991529 43.0523893982929, 141.430528531675 43.0517868013011, 141.430703713289 43.0515364832186, 141.431090245306 43.0509766754314, 141.431226809856 43.0509545834079, 141.431258866186 43.0514505003243, 141.43128455906 43.0518479093297, 141.43134230765 43.052654798584, 141.431433385389 43.0537179979574)) ^^http://www.opengis.net/ont/geosparql#wktLiteral