メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.587112731182 43.3324318750427, 145.586564066193 43.3331635281755, 145.58642536848 43.3333255838156, 145.586123958592 43.3336966652486, 145.585606675836 43.3343333829798, 145.584961735091 43.3340543370559, 145.58427875217 43.3337700686626, 145.584935070586 43.3329139124968, 145.585019631178 43.3329100387652, 145.586090252739 43.3315566576164, 145.586742464032 43.3307599622886, 145.586992654401 43.3308675584275, 145.588002088036 43.3312872031204, 145.587959855593 43.331346168501, 145.587112731182 43.3324318750427)) ^^http://www.opengis.net/ont/geosparql#wktLiteral