( ( As ( ( a result ) ( of ( hydrogen bonding ) ) ) ) ( , ( water ( ( has ( ( ( a ( ( very high ) ( surface tension ) ) ) , ) ( ( allowing ( some insects ) ) ( to ( walk ( on ( the ( water surface ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN As) (NP (NP (DT a) (NN result)) (PP (IN of) (NP (NN hydrogen) (NN bonding))))) (, ,) (NP (NN water)) (VP (VBZ has) (NP (NP (DT a) (ADJP (RB very) (JJ high)) (NN surface) (NN tension)) (, ,) (VP (VBG allowing) (NP (DT some) (NNS insects)) (S (VP (TO to) (VP (VB walk) (PP (IN on) (NP (DT the) (NN water) (NN surface))))))))) (. .)))
As a result of hydrogen bonding, water  has a very high surface tension, allowing some insects to walk on the water surface.
(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)))))))) (. .)))