メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.651459937319 42.8339355783228, 141.651570035028 42.8339840511499, 141.652100015249 42.8342078097307, 141.652113052358 42.8342133631897, 141.65233394902 42.8343070765305, 141.652441833553 42.834515966041, 141.652443287788 42.834518646514, 141.652793633433 42.8351868802308, 141.652953946062 42.8356625345142, 141.652958067578 42.8356762003796, 141.652495851523 42.8358414591752, 141.652315462445 42.8359168276925, 141.651768840437 42.8361088605896, 141.651157327414 42.8352374713354, 141.650491028638 42.8342917315343, 141.649968456448 42.8335354439472, 141.649959120047 42.8335226652752, 141.650278518775 42.8334007658742, 141.650402366784 42.8333661792094, 141.650494061907 42.833360821827, 141.650585784349 42.833352511661, 141.650813866504 42.8332510207334, 141.651317834243 42.8330454753747, 141.651269244235 42.8331244159512, 141.651260660771 42.8331918203057, 141.651255799674 42.8332797106673, 141.651270509784 42.8334088481041, 141.65128716722 42.8334948120509, 141.651293266042 42.8335262126528, 141.651316163022 42.8336290180239, 141.651376011237 42.8337499527366, 141.651425346903 42.8338758954479, 141.651459937319 42.8339355783228)) ^^http://www.opengis.net/ont/geosparql#wktLiteral