( ( H atoms ) ( ( are ( ( most commonly ) ( bonded ( to ( ( carbon ( ( -LRB- ( C -RRB- ) ) atoms ) ) ( in ( organic compounds ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP H) (NNS atoms)) (VP (VBP are) (ADJP (ADVP (RBS most) (RB commonly)) (JJ bonded) (S (VP (TO to) (VP (VB carbon) (NP (PRN (-LRB- -LRB-) (NP (NNP C)) (-RRB- -RRB-)) (NNS atoms)) (PP (IN in) (NP (JJ organic) (NNS compounds)))))))) (. .)))
H atoms are most commonly bonded to carbon (C) atoms in organic compounds.
(ROOT (S (NP (NNP Carbon)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (VBN found)) (NN element)) (PP (IN in) (NP (VBG living) (NNS organisms))))) (. .)))