メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.349321462243 43.7935046692137, 142.349744001685 43.7938185346691, 142.34913006717 43.7942643134937, 142.348455951405 43.7947815177493, 142.348055933996 43.7944815176677, 142.348046663643 43.7944750906845, 142.347669787892 43.7942091228147, 142.347428355455 43.7940367602994, 142.347038229542 43.7937590927146, 142.347728541294 43.7932578636096, 142.347543044131 43.793115285959, 142.347936635943 43.7928166956815, 142.348119118825 43.7926876555683, 142.348257310753 43.7927871825176, 142.349321462243 43.7935046692137)) ^^http://www.opengis.net/ont/geosparql#wktLiteral