an unexpectedly sweet story of sisterhood . 
(ROOT (NP (NP (DT an) (ADJP (RB unexpectedly) (JJ sweet)) (NN story)) (PP (IN of) (NP (NN sisterhood))) (. .)))
(ROOT (NP (NP (DT ) (ADJP (RB ) (JJ )) (NN )) (PP (IN ) (NP (NN ))) (. )))