メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.828046976378 38.6951784626388, 139.827545291929 38.6950377468187, 139.827465440664 38.6955200190329, 139.826902239936 38.6954623840837, 139.826434904833 38.695523955075, 139.825752889523 38.6956519428532, 139.82605348426 38.6944594526053, 139.82584199141 38.6944141340565, 139.826103897389 38.6937650810508, 139.825547074941 38.6937467675154, 139.825597091821 38.693465390849, 139.825667022801 38.6930829779329, 139.826761311323 38.6933018633954, 139.828023411799 38.6935431556733, 139.829118371351 38.6937471043162, 139.828622646982 38.6953398011194, 139.828046976378 38.6951784626388)) ^^http://www.opengis.net/ont/geosparql#wktLiteral