( ( A plasma ) ( ( contains ( electrically ( ( charged ( particles ( in addition ) ) ) ( to ( neutral ( ( atoms and ) molecules ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN plasma)) (VP (VBZ contains) (S (VP (ADVP (RB electrically)) (VBN charged) (NP (NP (NNS particles)) (PP (IN in) (NP (NN addition)))) (PP (TO to) (NP (JJ neutral) (NNS atoms) (CC and) (NNS molecules)))))) (. .)))
A plasma contains electrically charged particles in addition to neutral atoms and molecules.
(ROOT (S (NP (NNS Atoms)) (VP (VBP carry) (NP (DT a) (JJ neutral) (NN charge))) (. .)))