メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.346741060776 43.1463127463176, 141.34689525438 43.1470156963388, 141.346862034521 43.1470278833552, 141.3464202532 43.1471948754349, 141.346382294181 43.1472092043005, 141.345936160961 43.1473778559968, 141.345484615538 43.1475485742576, 141.345009789469 43.14772804017, 141.344667867481 43.1478572824578, 141.344515163385 43.147914802766, 141.344378147086 43.1474034912578, 141.344321984101 43.147212810693, 141.344274073815 43.1470487790008, 141.344175661366 43.1466554304301, 141.344010814337 43.1459931849761, 141.345286634126 43.1458220753359, 141.345715181196 43.1457644055347, 141.346622313245 43.1456423560606, 141.346705165888 43.1460040041237, 141.346776570383 43.1463081030294, 141.346741060776 43.1463127463176)) ^^http://www.opengis.net/ont/geosparql#wktLiteral