evelyn may be based on a true and historically significant story , but the filmmakers have made every effort to disguise it as an unimaginative screenwriter 's invention . 
(ROOT (S (S (NP (NNP evelyn)) (VP (MD may) (VP (VB be) (VP (VBN based) (PP (IN on) (NP (DT a) (ADJP (ADJP (JJ true)) (CC and) (ADJP (RB historically) (JJ significant))) (NN story))))))) (, ,) (CC but) (S (NP (DT the) (NNS filmmakers)) (VP (VBP have) (VP (VBN made) (NP (DT every) (NN effort) (S (VP (TO to) (VP (VB disguise) (NP (PRP it)) (PP (IN as) (NP (NP (DT an) (JJ unimaginative) (NN screenwriter) (POS 's)) (NN invention)))))))))) (. .)))
(ROOT (S (S (NP (NNP )) (VP (MD ) (VP (VB ) (VP (VBN ) (PP (IN ) (NP (DT ) (ADJP (ADJP (JJ )) (CC ) (ADJP (RB ) (JJ ))) (NN ))))))) (, ) (CC ) (S (NP (DT ) (NNS )) (VP (VBP ) (VP (VBN ) (NP (DT ) (NN ) (S (VP (TO ) (VP (VB ) (NP (PRP )) (PP (IN ) (NP (NP (DT ) (JJ ) (NN ) (POS )) (NN )))))))))) (. )))