Prostate cancer treated with surgery 5.
 Patient has not had surgery
(ROOT (NP (NP (NP (NN Prostate) (NN cancer)) (VP (VBN treated) (PP (IN with) (NP (NN surgery) (CD 5))))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (RB not) (VP (VBN had) (NP (NN surgery))))))
( ( ( Prostate cancer ) ( treated ( with ( surgery 5 ) ) ) ) . )
( Patient ( ( has not ) ( had surgery ) ) )