( ( ( Some ( aquatic insects ) ) ( such ( as ( the ( water strider ) ) ) ) ) ( ( ( rely ( on ( surface tension ) ) ) ( to ( walk ( on water ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Some) (JJ aquatic) (NNS insects)) (PP (JJ such) (IN as) (NP (DT the) (NN water) (NN strider)))) (VP (VBP rely) (PP (IN on) (NP (NN surface) (NN tension))) (S (VP (TO to) (VP (VB walk) (PP (IN on) (NP (NN water))))))) (. .)))
Some aquatic insects such as the water strider rely on surface tension to walk on water.
(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)))))))) (. .)))