This lesson was applied, using Tomahawk missiles, early in the Clinton administration.
( ( This lesson ) ( ( was ( ( ( applied ( , ( ( using ( Tomahawk missiles ) ) , ) ) ) early ) ( in ( the ( Clinton administration ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN lesson)) (VP (VBD was) (VP (VBN applied) (PRN (, ,) (S (VP (VBG using) (NP (NNP Tomahawk) (NNS missiles)))) (, ,)) (ADVP (RB early)) (PP (IN in) (NP (DT the) (NNP Clinton) (NN administration))))) (. .)))
Tomahawk missiles have never been launched by the U.S. government.
( ( Tomahawk missiles ) ( ( ( have never ) ( been ( launched ( by ( the ( U.S. government ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Tomahawk) (NNS missiles)) (VP (VBP have) (ADVP (RB never)) (VP (VBN been) (VP (VBN launched) (PP (IN by) (NP (DT the) (NNP U.S.) (NN government)))))) (. .)))