( Plasma ( ( is ( ( ( a state ) ( of matter ) ) ( that ( forms ( when ( ( ( tremendous amounts ) ( of energy ) ) ( cause ( ( the bonds ) ( that ( hold ( atoms ( together ( to ( break apart ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Plasma)) (VP (VBZ is) (NP (NP (DT a) (NN state)) (PP (IN of) (NP (NN matter))) (SBAR (WHNP (WDT that)) (S (VP (VBZ forms) (SBAR (WHADVP (WRB when)) (S (NP (NP (JJ tremendous) (NNS amounts)) (PP (IN of) (NP (NN energy)))) (VP (VBP cause) (NP (NP (DT the) (NNS bonds)) (SBAR (WHNP (WDT that)) (S (VP (VBP hold) (S (NP (NNS atoms)) (ADVP (RB together)) (VP (TO to) (VP (VB break) (ADVP (RB apart))))))))))))))))) (. .)))
Plasma is a state of matter that forms when tremendous amounts of energy cause the bonds that hold atoms together to break apart.
(ROOT (S (NP (NN Bond) (NN energy)) (VP (VBZ holds) (NP (NNS atoms)) (ADVP (RB together))) (. .)))
Bond energy holds atoms together.