( ( ( Relate ( ( the properties ) ( of ( covalent compounds ) ) ) ) ( to ( ( the model ) ( of ( covalent bonding ) ) ) ) ) . )
(ROOT (S (VP (VB Relate) (NP (NP (DT the) (NNS properties)) (PP (IN of) (NP (JJ covalent) (NNS compounds)))) (PP (TO to) (NP (NP (DT the) (NN model)) (PP (IN of) (NP (JJ covalent) (NN bonding)))))) (. .)))
Relate the properties of covalent compounds to the model of 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))))))))) (. .)))