( ( A ( reflex ( knee jerk ) ) ) ( ( ( is not ) conduct ) . ) )
(ROOT (S (NP (DT A) (JJ reflex) (NN knee) (NN jerk)) (VP (VBZ is) (RB not) (NP (NN conduct))) (. .)))
A reflex knee jerk is not conduct.
(ROOT (X (NP (DT The) (`` ``) (JJ knee-jerk) ('' '') (NN motion)) (SBAR (IN that) (S (NP (NNS people)) (ADVP (RB involuntarily)) (VP (VBP perform) (SBAR (IN after) (S (S (VP (VBG being) (VP (VBN struck) (PP (IN in) (NP (NP (DT the) (NN knee)) (PP (IN in) (NP (DT a) (JJ certain) (NN way)))))))) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ reflex))))))))))))