( ( ( ( Atomic ( ( structure and ) trends ) ) and ) covalent ) ( bonding . ) )
(ROOT (S (NP (NP (JJ Atomic) (NN structure) (CC and) (NNS trends)) (CC and) (NP (NN covalent))) (VP (VBZ bonding)) (. .)))
Atomic structure and trends and covalent bonding.
(ROOT (S (NP (DT A) (NN covalent) (NN network)) (ADVP (RB solid)) (VP (VBZ is) (NP (NP (DT a) (NN compound)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NP (DT all)) (PP (IN of) (NP (DT the) (NNS atoms)))) (VP (VBP are) (VP (VBN connected) (PP (TO to) (NP (CD one) (DT another))) (PP (IN by) (NP (JJ covalent) (NNS bonds))))))))) (. .)))