メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.170126305379 42.8820726768211, 143.170558710842 42.8823392863627, 143.17107699182 42.8826632997374, 143.170074502811 42.883254053425, 143.169685859543 42.8834877915681, 143.169299160977 42.8837110327672, 143.168888005737 42.8839555687795, 143.168465665712 42.8835939226436, 143.168124227626 42.8832703109646, 143.167784204106 42.8829646220389, 143.167441861167 42.882656840524, 143.16785129468 42.882405993606, 143.169044345207 42.881696137165, 143.169322570205 42.8815299610492, 143.170126305379 42.8820726768211)) ^^http://www.opengis.net/ont/geosparql#wktLiteral