. "Relation between an Observation and the Sensor which made the Observation."@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Relation between an Observation and the Sensor which made the Observation."@en . _:vb50857654 . . _:vb50857655 . . . . . . . . _:vb50857654 "W3C/OGC Spatial Data on the Web Working Group"@en . _:vb50857655 . "made by sensor"@en . . _:vb50857655 "W3C/OGC Spatial Data on the Web Working Group"@en . . _:vb50857654 . . _:vb50857654 . _:vb50857655 . . . . . . . . . . . . . . .