Closed on Friday.
( ( Closed ( on Friday ) ) . )
(ROOT (S (ADJP (VBN Closed) (PP (IN on) (NP (NNP Friday)))) (. .)))
Not open on Friday.
( Not ( ( open ( on Friday ) ) . ) )
(ROOT (FRAG (RB Not) (ADJP (JJ open) (PP (IN on) (NP (NNP Friday)))) (. .)))