2) Status post appendectomy.
 patient has a history of prior appendectomy
(ROOT (NP (NP (LST (LS 2) (-RRB- -RRB-)) (NP (NNP Status) (NN post) (NN appendectomy))) (. .)))
(ROOT (S (NP (NN patient)) (VP (VBZ has) (NP (NP (DT a) (NN history)) (PP (IN of) (NP (JJ prior) (NN appendectomy)))))))
( ( ( 2 -RRB- ) ( Status ( post appendectomy ) ) ) . )
( patient ( has ( ( a history ) ( of ( prior appendectomy ) ) ) ) )