( ( observe ( that ( ( ( moving ( a magnet ) ) ( in ( a ( coiled wire ) ) ) ) ( ( produces ( a current ) ) ( in ( the wire ) ) ) ) ) ) ; )
(ROOT (S (VP (VB observe) (SBAR (IN that) (S (S (VP (VBG moving) (NP (DT a) (NN magnet)) (PP (IN in) (NP (DT a) (JJ coiled) (NN wire))))) (VP (VBZ produces) (NP (DT a) (JJ current)) (PP (IN in) (NP (DT the) (NN wire))))))) (: ;)))
observe that moving a magnet in a coiled wire produces a current in the wire;
(ROOT (S (NP (NNP Alternative) (JJ current)) (VP (VBZ is) (VP (VBN produced) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (NN magnet) (CC or) (NN coil)) (VP (VBZ moves) (ADVP (RB back) (CC and) (RB forth)) (ADVP (RB repeatedly))))))) (. .)))