メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.327879903666 37.3882323695738, 140.327936820835 37.3886774687851, 140.327986931057 37.3891135871837, 140.328052472394 37.3895012055455, 140.328089236933 37.3898417626914, 140.328129180417 37.390211763259, 140.327579355132 37.3900650954922, 140.326274578251 37.3897169896962, 140.326182931624 37.3896932953218, 140.326258000557 37.3896823939024, 140.326201416904 37.3892825160178, 140.326126441473 37.3888267893586, 140.326053822425 37.3883872454586, 140.326018635374 37.3881738034978, 140.326782622407 37.3880126537422, 140.32781399232 37.3877946282744, 140.327879903666 37.3882323695738)) ^^http://www.opengis.net/ont/geosparql#wktLiteral