To reach any of the three Carbet falls, you must continue walking after the roads come to an end for 20 minutes, 30 minutes, or two hours respectively.
( ( ( To ( reach ( any ( of ( the ( three Carbet ) ) ) ) ) ) falls ) ( , ( you ( ( must ( continue ( walking ( after ( ( the roads ) ( ( come ( to ( ( an end ) ( for ( ( ( ( ( ( 20 minutes ) , ) ( 30 minutes ) ) , ) or ) ( two hours ) ) ) ) ) ) respectively ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (S (VP (TO To) (VP (VB reach) (NP (NP (DT any)) (PP (IN of) (NP (DT the) (CD three) (NN Carbet))))))) (VP (VBZ falls))) (, ,) (NP (PRP you)) (VP (MD must) (VP (VB continue) (S (VP (VBG walking) (SBAR (IN after) (S (NP (DT the) (NNS roads)) (VP (VBP come) (PP (TO to) (NP (NP (DT an) (NN end)) (PP (IN for) (NP (NP (CD 20) (NNS minutes)) (, ,) (NP (CD 30) (NNS minutes)) (, ,) (CC or) (NP (CD two) (NNS hours)))))) (ADVP (RB respectively))))))))) (. .)))
One route, that takes half an hour, passes through a treacherous ravine guarded by a pack of wolves and overlooked by vultures.
( ( ( ( ( One route ) , ) ( that ( takes ( half ( an hour ) ) ) ) ) , ) ( ( passes ( through ( ( a ( treacherous ravine ) ) ( ( ( guarded ( by ( ( a pack ) ( of wolves ) ) ) ) and ) ( overlooked ( by vultures ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD One) (NN route)) (, ,) (SBAR (WHNP (WDT that)) (S (VP (VBZ takes) (NP (PDT half) (DT an) (NN hour))))) (, ,)) (VP (VBZ passes) (PP (IN through) (NP (NP (DT a) (JJ treacherous) (NN ravine)) (VP (VP (VBN guarded) (PP (IN by) (NP (NP (DT a) (NN pack)) (PP (IN of) (NP (NNS wolves)))))) (CC and) (VP (VBN overlooked) (PP (IN by) (NP (NNS vultures)))))))) (. .)))