Assertion: viking spacecraft | /r/CapableOf | enter mars orbit
Facets:
value: on 7 august
type: TEMPORAL
value: on 19 june
type: TEMPORAL
Source sentences:
text: The Viking 1 spacecraft launched on 20 August 1975 and entered Mars orbit on 19 June 1976.
text: The Viking 2 spacecraft launched on 9 September 1975 and entered Mars orbit on 7 August 1976.