Today it is the effects of pollution that are taking their toll on Agra's monuments.
( Today ( it ( ( is ( ( ( the effects ) ( of pollution ) ) ( that ( are ( ( taking ( their toll ) ) ( on ( ( Agra 's ) monuments ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NN Today)) (NP (PRP it)) (VP (VBZ is) (NP (NP (DT the) (NNS effects)) (PP (IN of) (NP (NN pollution))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBG taking) (NP (PRP$ their) (NN toll)) (PP (IN on) (NP (NP (NNP Agra) (POS 's)) (NNS monuments))))))))) (. .)))
Nowadays there is so much pollution that Agra has had to take measures to protect its monuments.
( Nowadays ( there ( ( ( ( is ( so much ) ) pollution ) ( that ( Agra ( has ( had ( to ( take ( measures ( to ( protect ( its monuments ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNS Nowadays)) (ADVP (RB there)) (VP (VBZ is) (ADVP (RB so) (RB much)) (NP (NN pollution)) (SBAR (IN that) (S (NP (NNP Agra)) (VP (VBZ has) (VP (VBN had) (S (VP (TO to) (VP (VB take) (S (NP (NNS measures)) (VP (TO to) (VP (VB protect) (NP (PRP$ its) (NNS monuments))))))))))))) (. .)))