メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.855010943881 35.4075933441926, 136.855850342075 35.4076440363536, 136.85582076091 35.408231062019, 136.855814703005 35.4087121645206, 136.855750581769 35.4091714971164, 136.854807015019 35.4090782126105, 136.853811038989 35.4089700663569, 136.853999804875 35.4078025476599, 136.854354587536 35.4077489629137, 136.854496162472 35.4077282738502, 136.854513642078 35.4075890962567, 136.855010943881 35.4075933441926)) ^^http://www.opengis.net/ont/geosparql#wktLiteral