_:vb1436486 . _:vb1436715 . _:vb1436486 _:vb1436812 . _:vb1436715 . _:vb1436812 . "ETCS application level related to the track side equipment. The allowed values for this property belong to the SKOS Concept Scheme http://data.europa.eu/949/concepts/etcs-levels/ETCSLevels"@en . _:vb1436486 . "2021-08-07"^^ . "1.2.1.1.1.1" . "2021-09-12"^^ . _:vb1436812 _:vb1436715 . "stable" . . . "Etcs level"@en . .