Assertion: lunar module | /r/HasProperty | lunar excursion vehicle
Facets:
value: previously
type: TEMPORAL
Source sentences:
text: Rosen also recommended that the S- IVB stage be used as a flight test vehicle to exercise the command module (CM), service module (SM), and lunar excursion module (LEM) (previously referred to as the lunar excursion vehicle (LEV)) in earth orbit missions.