Complacency came easily after a couple of weeks without capture.
( Complacency ( ( ( ( came easily ) ( after ( ( a couple ) ( of weeks ) ) ) ) ( without capture ) ) . ) )
(ROOT (S (NP (NNP Complacency)) (VP (VBD came) (ADVP (RB easily)) (PP (IN after) (NP (NP (DT a) (NN couple)) (PP (IN of) (NP (NNS weeks))))) (PP (IN without) (NP (NN capture)))) (. .)))
We stayed vigilant.
( We ( ( stayed vigilant ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBD stayed) (NP (NN vigilant))) (. .)))