メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.235206096374 36.1292577540363, 136.23522440918 36.1296521119171, 136.233968393016 36.1296410358225, 136.232763759469 36.1296537683094, 136.232745561079 36.1292798476038, 136.232726757045 36.1286912552312, 136.233405939785 36.1286795528177, 136.233722027673 36.1286720027421, 136.234249584741 36.1286623259446, 136.23495868633 36.1286574875729, 136.235197912253 36.1286570225425, 136.235206096374 36.1292577540363)) ^^http://www.opengis.net/ont/geosparql#wktLiteral