メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.384132247449 43.7837595267925, 142.384094675478 43.7836962978239, 142.383969416429 43.7834674915164, 142.38358740886 43.7827644984528, 142.383462152131 43.7825627122048, 142.38348299533 43.7825567635856, 142.383909718841 43.7824292697362, 142.384341039874 43.7823028226529, 142.384777990536 43.7821780020063, 142.38530892637 43.7820089619025, 142.385776179163 43.7819042134957, 142.385859591626 43.7818855154201, 142.386456650656 43.7830228046721, 142.384314909356 43.7836327700176, 142.384344150907 43.7836930021648, 142.384132247449 43.7837595267925)) ^^http://www.opengis.net/ont/geosparql#wktLiteral