メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.846606813851 43.0387025705008, 144.846954527155 43.0392453845279, 144.847260421045 43.0397784566513, 144.846906376632 43.0398901574303, 144.846929137455 43.0399251541767, 144.846404981135 43.0401452187248, 144.845626706212 43.0404049471162, 144.84558340503 43.0403011468737, 144.844580779975 43.0409111152965, 144.843905383138 43.0402954884397, 144.843112352669 43.0395635363613, 144.843558242091 43.0392697330618, 144.84353098798 43.0392417992895, 144.843758882494 43.0391032237507, 144.843790412535 43.0391279657288, 144.845419352246 43.0380431637462, 144.845767796203 43.0378580356138, 144.84660321572 43.0386991353112, 144.846606813851 43.0387025705008)) ^^http://www.opengis.net/ont/geosparql#wktLiteral