Exercises were conducted to counter this threat, but they were not based on actual intelligence.
( ( ( ( ( Exercises ( were ( conducted ( to ( counter ( this threat ) ) ) ) ) ) , ) but ) ( they ( ( were not ) ( based ( on ( actual intelligence ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Exercises)) (VP (VBD were) (VP (VBN conducted) (S (VP (TO to) (VP (VB counter) (NP (DT this) (NN threat)))))))) (, ,) (CC but) (S (NP (PRP they)) (VP (VBD were) (RB not) (VP (VBN based) (PP (IN on) (NP (JJ actual) (NN intelligence)))))) (. .)))
Exercises were not based on actual intelligence.
( Exercises ( ( ( were not ) ( based ( on ( actual intelligence ) ) ) ) . ) )
(ROOT (S (NP (NNS Exercises)) (VP (VBD were) (RB not) (VP (VBN based) (PP (IN on) (NP (JJ actual) (NN intelligence))))) (. .)))