evelyn may be based on a true and historically significant story 
(ROOT (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))))))))
(ROOT (S (NP (NNP )) (VP (MD ) (VP (VB ) (VP (VBN ) (PP (IN ) (NP (DT ) (ADJP (ADJP (JJ )) (CC ) (ADJP (RB ) (JJ ))) (NN ))))))))