( ( Surface tension ) ( ( ( ( allows ( ( many ( aquatic insects ) ) ( , ( ( like ( water ( spiders ( and ( pod skaters ) ) ) ) ) ( , ( to ( `` ( ( walk '' ) ( across rivers ) ) ) ) ) ) ) ) ) and ) streams ) . ) )
(ROOT (S (NP (JJ Surface) (NN tension)) (VP (VP (VBZ allows) (S (NP (JJ many) (JJ aquatic) (NNS insects)) (, ,) (PP (IN like) (NP (NN water) (NNS spiders) (CC and) (NN pod) (NNS skaters))) (, ,) (VP (TO to) (VP (`` ``) (VB walk) ('' '') (PP (IN across) (NP (NNS rivers))))))) (CC and) (VP (VBZ streams))) (. .)))
Surface tension allows many aquatic insects, like water spiders and pod skaters, to &quot;walk&quot; across rivers and streams.
(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)))))))) (. .)))