( ( ELECTRIC ( CURRENT Electrons ) ) ( ( ( move ( through ( ( a conductor ) ( in response ) ) ) ) ( to ( a ( magnetic field ) ) ) ) . ) )
(ROOT (S (NP (NNP ELECTRIC) (NNP CURRENT) (NNP Electrons)) (VP (VBP move) (PP (IN through) (NP (NP (DT a) (NN conductor)) (PP (IN in) (NP (NN response))))) (PP (TO to) (NP (DT a) (JJ magnetic) (NN field)))) (. .)))
ELECTRIC CURRENT Electrons move through a conductor in response to a magnetic field.
(ROOT (S (NP (DT A) (NN conductor)) (VP (VBZ allows) (S (NP (NNS electrons)) (VP (TO to) (VP (VB move) (PP (IN in) (NP (DT an) (JJ electrochemical) (NN system)))))))))