メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.797732963513 35.4445548441899, 136.797513478275 35.4445276924322, 136.797403996738 35.4444944702108, 136.797260364745 35.4444492059546, 136.797091302454 35.4443948855775, 136.79686039015 35.4443078387542, 136.796597108483 35.4442145657197, 136.796330484218 35.4441184648482, 136.796376244014 35.4438411840563, 136.796981947995 35.4439299140719, 136.797794274817 35.4439800133199, 136.797732963513 35.4445548441899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral