( ( ( Two types ) ( of ( ( chemical bonds ) ( common ( in compounds ) ) ) ) ) ( ( are ( ( ( covalent bonds ) and ) ( ionic bonds ) ) ) . ) )
(ROOT (S (NP (NP (CD Two) (NNS types)) (PP (IN of) (NP (NP (NN chemical) (NNS bonds)) (ADJP (JJ common) (PP (IN in) (NP (NNS compounds))))))) (VP (VBP are) (NP (NP (JJ covalent) (NNS bonds)) (CC and) (NP (JJ ionic) (NNS bonds)))) (. .)))
Two types of chemical bonds common in compounds are covalent bonds and ionic bonds .
(ROOT (S (NP (NN Hydrogen) (NN chloride)) (VP (VBZ is) (NP (DT a) (JJ covalent) (NN compound))) (. .)))