メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.33850472212 43.103999721209, 141.33866188411 43.1039388046769, 141.339457908504 43.104038900026, 141.339346551521 43.1044805163699, 141.339254980395 43.1048433120847, 141.339189813964 43.1051019517597, 141.338904165543 43.1050697138837, 141.338774893074 43.1050556017801, 141.338604778834 43.1050836413049, 141.338153153645 43.1045679786481, 141.337893488614 43.1042599084257, 141.33850472212 43.103999721209)) ^^http://www.opengis.net/ont/geosparql#wktLiteral