He was a pilot, not a platoon leader.
( He ( ( was ( ( ( ( a pilot ) , ) not ) ( a ( platoon leader ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD was) (NP (NP (DT a) (NN pilot)) (, ,) (RB not) (NP (DT a) (NN platoon) (NN leader)))) (. .)))
He was a decorated platoon leader with many years of command experience.
( He ( ( was ( ( a ( decorated ( platoon leader ) ) ) ( with ( ( many years ) ( of ( command experience ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD was) (NP (NP (DT a) (JJ decorated) (NN platoon) (NN leader)) (PP (IN with) (NP (NP (JJ many) (NNS years)) (PP (IN of) (NP (NN command) (NN experience))))))) (. .)))