( ( Such ( a ( `` ( knee-jerk ( '' reflex ) ) ) ) ) ( ( to conflict ) ( ( is ( ( a kind ) ( of ( ( single ( feedback loop ) ) ( between ( ( actions and ) reactions ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (PDT Such) (DT a) (`` ``) (JJ knee-jerk) ('' '') (NNS reflex)) (PP (TO to) (NP (NN conflict))) (VP (VBZ is) (NP (NP (DT a) (NN kind)) (PP (IN of) (NP (NP (JJ single) (NN feedback) (NN loop)) (PP (IN between) (NP (NNS actions) (CC and) (NNS reactions))))))) (. .)))
Such a &quot;knee-jerk&quot; reflex to conflict is a kind of single feedback loop between actions and reactions.
(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))))))))))))