    Sentence 1: What happened £6 Apollo12?         Sefitence 2: Five of: the. feiiainina, six missions: achieved  Siccessful “landings, but” thé. Apolté:. 13-landing’“wa's  préVentad by ‘art oxygeh tank éxplosion Jh-transit to the:  Moori,’:- which *. disabled: the. “command. ‘spacecratt's  propulsion’ and life support. 4 4              