(S (S (BASENP (NN Ricin)) (VP (VP (VBZ is) (NP (BASENP (NN one)) (PP (IN of) (NP (BASENP (DT the) (ADJP (RBS most) (JJ deadly)) (NNS poisons)) (PP (IN in) (BASENP (DT the) (NN world))))))) (CC and) (VP (MD can) (VP (VB exist) (PP (IN in) (NP (BASENP (DT the) (NN form)) (PP (IN of) (NP (NP (BASENP (DT a) (NN pellet)) (COMMA ,) (BASENP (NN mist))) (CONJP (COMMA ,) (CC or)) (BASENP (NN powder)))))))))) (PERIOD .))