メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.529699380781 42.6185398221898, 141.528996225262 42.6196561056738, 141.528500919448 42.6194874052733, 141.526315593449 42.6187543169543, 141.526070824399 42.6186700497269, 141.526063115189 42.6186819576359, 141.525796427601 42.6185992388142, 141.525809315455 42.6185800488924, 141.526056595074 42.6181811271279, 141.526275872449 42.6178274641968, 141.526499080002 42.6174673553194, 141.526719470839 42.6171117287043, 141.526945776114 42.6167467148266, 141.527305213743 42.6161389012882, 141.527852206451 42.616323689243, 141.528831566336 42.6166545521546, 141.530004923691 42.6170510587909, 141.530015596791 42.6170546426903, 141.530483777272 42.6172127563653, 141.530186330628 42.6177160297523, 141.529984743724 42.6180570114322, 141.529699380781 42.6185398221898)) ^^http://www.opengis.net/ont/geosparql#wktLiteral