( ( Used ( for ( ( ( organic and ) functional ) ( heart troubles ) ) ) ) . )
(ROOT (S (VP (VBN Used) (PP (IN for) (NP (ADJP (JJ organic) (CC and) (JJ functional)) (NN heart) (NNS troubles)))) (. .)))
Used for organic and functional heart troubles.
(ROOT (S (PP (IN In) (NP (NNS humans))) (, ,) (NP (DT the) (NN heart)) (VP (VBZ is) (NP (DT the) (JJ first) (NN organ) (S (VP (TO to) (VP (VP (VB form)) (CC and) (VP (VB become) (ADJP (JJ functional)))))))) (. .)))