メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.393777861644 43.0363162273975, 141.393487873838 43.0367619953496, 141.393244418017 43.0371086620428, 141.392892813628 43.0376548905133, 141.39246948902 43.0374845459405, 141.391883461203 43.03725931896, 141.391204949024 43.0370042784656, 141.391523719223 43.0364826347924, 141.391558823264 43.0362752118708, 141.391603287451 43.0360428209505, 141.391626027595 43.0359589466911, 141.39184154599 43.0356634855078, 141.392073326342 43.0357492666047, 141.392701401485 43.0359627819671, 141.392748399132 43.0359821223363, 141.393777861644 43.0363162273975)) ^^http://www.opengis.net/ont/geosparql#wktLiteral