( ( PROTOZOA ( Cryptosporidium ( parvum ( and ( Giardia lamblia ) ) ) ) ) ( ( are ( ( ( protozoan pathogens ) ( -LRB- ( ( disease-causing organisms ) -RRB- ) ) ) ( found ( in ( most ( surface waters ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP PROTOZOA) (NNP Cryptosporidium) (NNP parvum) (CC and) (NNP Giardia) (NNP lamblia)) (VP (VBP are) (NP (NP (NN protozoan) (NNS pathogens)) (PRN (-LRB- -LRB-) (NP (JJ disease-causing) (NNS organisms)) (-RRB- -RRB-)) (VP (VBN found) (PP (IN in) (NP (JJS most) (NN surface) (NNS waters)))))) (. .)))
PROTOZOA Cryptosporidium parvum and Giardia lamblia are protozoan pathogens (disease-causing organisms) found in most surface waters.
(ROOT (S (NP (NNS Trichomoniasis)) (VP (VBZ is) (VP (VB cause) (PP (IN by) (NP (DT a) (NN protozoa))))) (. .)))