( ( Ozone ( Depleting ( Compound ( Recovery Systems ) ) ) ) ( ( For ( personnel ( who ( operate ( ozone ( depleting ( compound equipment ) ) ) ) ) ) ) . ) )
(ROOT (FRAG (NP (NNP Ozone) (NNP Depleting) (NNP Compound) (NNP Recovery) (NNP Systems)) (PP (IN For) (NP (NP (NNS personnel)) (SBAR (WHNP (WP who)) (S (VP (VBP operate) (NP (NP (NN ozone)) (VP (VBG depleting) (NP (JJ compound) (NN equipment))))))))) (. .)))
Ozone Depleting Compound Recovery Systems For personnel who operate ozone depleting compound equipment.
(ROOT (S (NP (NN Ozone)) (VP (VBZ is) (NP (NP (DT a) (NN compound)) (VP (VBN formed) (SBAR (WHADVP (WRB when)) (S (NP (EX there)) (VP (VBZ is) (VP (VBG sparking) (NP (JJ electrical) (NN equipment))))))))) (. .)))