メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.36935730015 43.7783510901357, 142.369586313728 43.7787223156076, 142.369777397989 43.7790756130386, 142.369368135955 43.7791581709683, 142.36913516208 43.7791888056694, 142.368886922133 43.7791738883741, 142.368677441176 43.779876501065, 142.368566326546 43.7802514862988, 142.368330194491 43.7809400433472, 142.367910026441 43.7806303671803, 142.368378163625 43.7790090094504, 142.368378139949 43.7789970017665, 142.368133730159 43.7787145715663, 142.367875467761 43.7784073139131, 142.368226415842 43.7780499828273, 142.368449682157 43.777823492178, 142.368976016162 43.7776743635693, 142.369149136725 43.7780085171353, 142.36935730015 43.7783510901357)) ^^http://www.opengis.net/ont/geosparql#wktLiteral