メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.123786337662 43.6579314655098, 145.123697598239 43.6582354374213, 145.12358251009 43.6586287098817, 145.123509070924 43.6588799099491, 145.123407877874 43.6590853616423, 145.122394907894 43.6589187085167, 145.122333793898 43.6589086432862, 145.118926828823 43.6583010417467, 145.119053909223 43.658162976011, 145.119216882547 43.6578757059032, 145.120554309043 43.6569912236246, 145.120753468934 43.657020320503, 145.122839584591 43.6573374381105, 145.123864014809 43.6574931107719, 145.123912407458 43.6575004720871, 145.123786337662 43.6579314655098)) ^^http://www.opengis.net/ont/geosparql#wktLiteral