She then told of the stabbings of the two flight attendants.
( She ( then ( ( told ( of ( ( the stabbings ) ( of ( the ( two ( flight attendants ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (PRP She)) (ADVP (RB then)) (VP (VBD told) (PP (IN of) (NP (NP (DT the) (NNS stabbings)) (PP (IN of) (NP (DT the) (CD two) (NN flight) (NNS attendants)))))) (. .)))
The flight attendants could do something about the stabbing.
( ( The ( flight attendants ) ) ( ( could ( ( do something ) ( about ( the stabbing ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN flight) (NNS attendants)) (VP (MD could) (VP (VB do) (NP (NN something)) (PP (IN about) (NP (DT the) (NN stabbing))))) (. .)))