メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.990457718826 43.1040836901242, 142.990556786768 43.1044347720691, 142.990574419267 43.1044919774757, 142.990720757773 43.1049662542361, 142.98997853102 43.1051070055277, 142.988783424639 43.1053335272248, 142.98861593205 43.1048591038818, 142.988587908518 43.1047797412727, 142.988460857716 43.1044113955128, 142.988166550048 43.1034837358616, 142.988921077565 43.1033575454126, 142.989063370029 43.1033336983045, 142.99015243475 43.1031516050668, 142.990434104999 43.103999938671, 142.990457718826 43.1040836901242)) ^^http://www.opengis.net/ont/geosparql#wktLiteral