Assertion: railway's line | /r/HasProperty | electrified with 750 volt third rail
Facets:
value: in 1928
type: TEMPORAL
Source sentences:
text: The main line Berlin Stadtbahn (English: City railway of Berlin) was electrified with a 750 volt third rail in 1928 (some steam trains ran until 1929) and the circle line Berlin Ringbahn was electrified in 1929.