( ( ( ( ( ( You ( can ( ( understand ( surface tension ) ) ( in liquids ) ) ) ) , ) ( ( ( the way ) ( ( small insects ) ( can ( ( ( walk ( on water ) ) , ) well ) ) ) ) ( solids ( exhibit ( similar characteristics ) ) ) ) ) and ) ( this ( is ( ( the key ) ( to ( ( how useful ) ( they ( are ( in ( the ( bonding process ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP You)) (VP (MD can) (VP (VB understand) (NP (NN surface) (NN tension)) (PP (IN in) (NP (NNS liquids)))))) (, ,) (S (NP (NP (DT the) (NN way)) (SBAR (S (NP (JJ small) (NNS insects)) (VP (MD can) (VP (VB walk) (PP (IN on) (NP (NN water))) (, ,) (ADVP (RB well))))))) (VP (VBZ solids) (VP (VB exhibit) (NP (JJ similar) (NNS characteristics))))) (CC and) (S (NP (DT this)) (VP (VBZ is) (NP (NP (DT the) (NN key)) (PP (TO to) (SBAR (WHADJP (WRB how) (ADJP (JJ useful))) (S (NP (PRP they)) (VP (VBP are) (PP (IN in) (NP (DT the) (NN bonding) (NN process)))))))))) (. .)))
You can understand surface tension in liquids, the way small insects can walk on water, well solids exhibit similar characteristics and this is the key to how useful they are in the bonding process.
(ROOT (S (NP (JJ Surface) (NN tension)) (VP (VBZ is) (ADJP (JJ responsible) (PP (IN for) (NP (DT the) (NN fact)))) (SBAR (IN that) (S (NP (JJ small) (NNS insects)) (VP (MD can) (VP (VB walk) (PP (IN on) (NP (NN water)))))))) (. .)))