( Anyway ( , ( ( what ( makes ( it ( ( possible ( for insects ) ) ( to ( walk ( on water ) ) ) ) ) ) ) ( ( is ( called ( Surface tension ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Anyway)) (, ,) (SBAR (WHNP (WP what)) (S (VP (VBZ makes) (S (NP (PRP it)) (ADJP (JJ possible) (PP (IN for) (NP (NNS insects)))) (S (VP (TO to) (VP (VB walk) (PP (IN on) (NP (NN water)))))))))) (VP (VBZ is) (VP (VBN called) (NP (JJ Surface) (NN tension)))) (. .)))
Anyway, what makes it possible for insects to walk on water is called Surface tension .
(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)))))))) (. .)))