( Programming ( : ( ( ( ( The length ) ( of ( the ( Summer Festival ) ) ) ) ( has ( increased ( from ( ( ( 10 to ) 17 ) days ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (NN Programming)) (: :) (S (NP (NP (DT The) (NN length)) (PP (IN of) (NP (DT the) (NNP Summer) (NNP Festival)))) (VP (VBZ has) (VP (VBN increased) (PP (IN from) (NP (QP (CD 10) (TO to) (CD 17)) (NNS days)))))) (. .)))
Programming: The length of the Summer Festival has increased from 10 to 17 days.
(ROOT (S (NP (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN increase)) (PP (IN in) (NP (NN length)))) (VP (VBZ happens) (PP (TO to) (NP (NN metal) (NN railroad) (NNS tracks))) (PP (IN during) (NP (NP (DT the) (NN heat)) (PP (IN of) (NP (DT a) (NN summer) (NN day)))))) (. .)))