メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.039868488999 42.9163562766459, 143.042280606406 42.9165147694201, 143.042090946089 42.9178438781816, 143.042087458467 42.9178741452697, 143.041650790129 42.9178422046769, 143.041562895809 42.9178346522421, 143.04133149927 42.9178147975563, 143.041211288303 42.9178131654608, 143.041130946271 42.9178086556641, 143.040753168649 42.9177873470542, 143.040699148125 42.9177833595061, 143.040284223139 42.9177530220075, 143.040253630106 42.9177514034546, 143.039673206947 42.9177211495231, 143.039679192602 42.917702821532, 143.039825334328 42.9166632918541, 143.039868488999 42.9163562766459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral