( ( Distillation Water ) ( ( is ( treated ( in ( a ( ( still ( to ( kill ( ( pathogens Kills ) ( all known ) ) ) ) ) pathogens ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Distillation) (NNP Water)) (VP (VBZ is) (VP (VBN treated) (PP (IN in) (NP (DT a) (ADJP (RB still) (S (VP (TO to) (VP (VB kill) (NP (NP (NNP pathogens) (NNP Kills)) (ADJP (RB all) (VBN known))))))) (NNS pathogens))))) (. .)))
Distillation Water is treated in a still to kill pathogens Kills all known pathogens.
(ROOT (S (NP (NNP Water)) (VP (MD can) (VP (VB be) (VP (VBN boiled) (S (VP (TO to) (VP (VB kill) (NP (NP (NN giardia)) (CC and) (NP (RBS most) (JJ other) (NNS pathogens))))))))) (. .)))