( ( As ( one ( walks ( on ( ( ( the trail ) ( under ( the Sun ) ) ) ( that ( ( ( shines ( through woods ) ) , ) ( listening ( to ( songs ( of ( small ( ( birds and ) insects ) ) ) ) ) ) ) ) ) ) ) ) ) ( , ( ( ( the sound ) ( of ( water ( dropping quietly ) ) ) ) ( ( can ( be heard ) ) . ) ) ) )
(ROOT (S (SBAR (IN As) (S (NP (PRP one)) (VP (VBZ walks) (PP (IN on) (NP (NP (DT the) (NN trail)) (PP (IN under) (NP (DT the) (NNP Sun))) (SBAR (WHNP (WDT that)) (S (VP (VBZ shines) (PP (IN through) (NP (NNS woods))) (, ,) (S (VP (VBG listening) (PP (TO to) (NP (NP (NNS songs)) (PP (IN of) (NP (JJ small) (NNS birds) (CC and) (NNS insects))))))))))))))) (, ,) (NP (NP (DT the) (NN sound)) (PP (IN of) (NP (NP (NN water)) (VP (VBG dropping) (ADVP (RB quietly)))))) (VP (MD can) (VP (VB be) (VP (VBN heard)))) (. .)))
As one walks on the trail under the Sun that shines through woods, listening to songs of small birds and insects, the sound of water dropping quietly can be heard.
(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)))))))) (. .)))