メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.024272050507 40.2275187779212, 140.022052552379 40.2275533796871, 140.021994770817 40.2250085900223, 140.024582200667 40.2249739940175, 140.024439213809 40.2257124564879, 140.024343866884 40.226319740008, 140.024265882406 40.2267019781921, 140.024245171194 40.2272084582448, 140.024272050507 40.2275187779212)) ^^http://www.opengis.net/ont/geosparql#wktLiteral