メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.931639958102 35.0898354859194, 136.932055950029 35.0899746126414, 136.931462820839 35.0910743150207, 136.93145420599 35.0910759182305, 136.931039522103 35.0909422149559, 136.930986862404 35.090930069688, 136.930668114814 35.09081359518, 136.931264563364 35.0897098885423, 136.931639958102 35.0898354859194)) ^^http://www.opengis.net/ont/geosparql#wktLiteral