メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.227217410185 37.1547189236137, 138.227217353368 37.1547347636361, 138.227300747827 37.1552279061781, 138.227715219478 37.1557363863896, 138.227842811718 37.1558930403554, 138.228574459186 37.1567905821585, 138.22853883786 37.1567840931231, 138.228487361918 37.1567777081638, 138.228433563941 37.1567812465413, 138.228491390735 37.1572568688842, 138.22855556237 37.1577848833241, 138.228609845123 37.1582312123063, 138.228685276539 37.1588515485165, 138.228772822483 37.159571671676, 138.227700997229 37.1593950309726, 138.226575321221 37.1592008656963, 138.225815239898 37.1591389777472, 138.22571189352 37.1591371190514, 138.225626731964 37.158848979725, 138.225517674875 37.1584798952955, 138.225385801266 37.1580539429076, 138.22527861874 37.1576050977579, 138.22525811149 37.1575112040413, 138.225187233568 37.1570078832217, 138.225181766304 37.1569752043539, 138.225010811206 37.1559564516426, 138.224949209603 37.1557099756256, 138.224888830173 37.155447871333, 138.224868913844 37.1553004749157, 138.225252700804 37.1551990778692, 138.225611865409 37.1548398111884, 138.226220256709 37.1541231316317, 138.226802147986 37.1543781374507, 138.226889009275 37.1543947410223, 138.227037275859 37.1543950841554, 138.227134267409 37.154432058618, 138.227333232574 37.1545512143551, 138.227257364476 37.1546206660963, 138.227217580888 37.1546713332583, 138.227217410185 37.1547189236137)) ^^http://www.opengis.net/ont/geosparql#wktLiteral