メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.728319798913 35.4209017054216, 136.728462780327 35.421615756832, 136.728593355727 35.4221272349935, 136.728925023283 35.4230041494406, 136.72827918061 35.4231049337961, 136.727215850361 35.4232832405809, 136.726729167276 35.4233504784809, 136.726620350382 35.4228976672012, 136.726496221136 35.4224529330166, 136.7263795873 35.4219669600107, 136.726249332327 35.4215023096668, 136.725820674992 35.4195726028333, 136.72593637765 35.4195567937253, 136.727874408669 35.4193439383571, 136.728147964086 35.4193125054279, 136.728319798913 35.4209017054216)) ^^http://www.opengis.net/ont/geosparql#wktLiteral