( ( The toxicity ) ( ( ( was ( very low ) ) ( for ( most ( of ( the coatings ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN toxicity)) (VP (VBD was) (ADJP (RB very) (JJ low)) (PP (IN for) (NP (NP (JJS most)) (PP (IN of) (NP (DT the) (NNS coatings)))))) (. .)))
The toxicity was very low for most of the coatings.
(ROOT (S (NP (NP (DT The) (JJ main) (NN advantage)) (PP (IN of) (NP (NN urea)))) (VP (VBZ is) (NP (PRP$ its) (ADJP (RB very) (JJ low)) (NN toxicity))) (. .)))