Assertion: rocket | /r/CapableOf | use four f-1 engines
Facets:
value: on its first stage
type: TEMPORAL
Source sentences:
text: But MSFC was already planning an even bigger rocket, the C-4, which would use four F-1 engines on its first stage, an enlarged C-3 second stage, and the S-IVB, a stage with a single J-2 engine, as its third stage.