( There ( ( ( are actually ) ( ( ( 20 ( mineral elements ) ) ( ( necessary or ) beneficial ) ) ( for ( plant growth ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (ADVP (RB actually)) (NP (NP (CD 20) (NN mineral) (NNS elements)) (ADJP (JJ necessary) (CC or) (JJ beneficial)) (PP (IN for) (NP (NN plant) (NN growth))))) (. .)))
There are actually 20 mineral elements necessary or beneficial for plant growth.
(ROOT (S (NP (NNP Plant) (NNP nutrition)) (VP (VBZ is) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NP (DT the) (JJ chemical) (NNS elements)) (ADJP (JJ necessary) (PP (IN for) (NP (NN plant) (NN growth)))))))) (. .)))