( ( For example ) ( , ( ( in methane ) ( , ( ( the ( bonding electrons ) ) ( ( are ( ( shared ( by ( all ( five atoms ) ) ) ) equally ) ) . ) ) ) ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (, ,) (PP (IN in) (NP (NN methane))) (, ,) (NP (DT the) (NN bonding) (NNS electrons)) (VP (VBP are) (VP (VBN shared) (PP (IN by) (NP (DT all) (CD five) (NNS atoms))) (ADVP (RB equally)))) (. .)))
For example, in methane, the bonding electrons are shared by all five atoms equally.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NNS electrons)) (VP (VBP are) (VP (VBN shared) (ADVP (RB equally)))))) (, ,) (NP (PRP it)) (VP (VBZ is) (VP (VBN called) (NP (NN nonpolar) (NNS bonds)))) (. .)))