( DDT ( ( ( ( ( does not ) ( ( occur naturally ) ( in ( the environment ) ) ) ) and ) ( is ( ( a ( white ( , ( crystalline solid ) ) ) ) ( with ( no ( ( odor or ) taste ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP DDT)) (VP (VP (VBZ does) (RB not) (VP (VB occur) (ADVP (RB naturally)) (PP (IN in) (NP (DT the) (NN environment))))) (CC and) (VP (VBZ is) (NP (NP (DT a) (JJ white) (, ,) (JJ crystalline) (NN solid)) (PP (IN with) (NP (DT no) (NN odor) (CC or) (NN taste)))))) (. .)))
DDT does not occur naturally in the environment and is a white, crystalline solid with no odor or taste.
(ROOT (S (NP (NP (DT The) (NN majority)) (PP (IN of) (NP (NNS solids)))) (VP (VBP are) (VP (VBG crystalline) (PP (IN in) (NP (NN nature))))) (. .)))