メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.932030320892 35.0886651256843, 136.93184400468 35.0885922710216, 136.931651437763 35.0885244756642, 136.931730311453 35.0883745107014, 136.931924240676 35.0884440709346, 136.932291592901 35.0877655419185, 136.932382175511 35.0875973243295, 136.93261344929 35.0875634725934, 136.932848886129 35.0876338614204, 136.933150881588 35.0877242393187, 136.933207058678 35.087818509246, 136.932626014391 35.0888980311981, 136.932229007669 35.0887428160815, 136.932030320892 35.0886651256843)) ^^http://www.opengis.net/ont/geosparql#wktLiteral