メタデータ名 timeperiod
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.787982362601 35.4839174040751, 135.787173183074 35.484069184087, 135.784286684731 35.4846246548457, 135.784184575522 35.4842638393745, 135.784013643519 35.4837265252713, 135.783780476374 35.4830541696609, 135.786638455025 35.4824377159143, 135.787982362601 35.4839174040751)) ^^http://www.opengis.net/ont/geosparql#wktLiteral