He had one episode of pancreatitis 15 years ago, and another in [**3139**].
 The patient has never had an abnormal release of lipase into his blood stream.
(ROOT (S (NP (PRP He)) (VP (VP (VBD had) (NP (NP (CD one) (NN episode)) (PP (IN of) (NP (NN pancreatitis)))) (ADVP (NP (CD 15) (NNS years)) (RB ago))) (, ,) (CC and) (VP (NP (DT another)) (PP (IN in) (NP (PRN (-LRB- -LSB-) (FRAG (SYM **) (QP (CD 3139)) (X (SYM **))) (-RRB- -RSB-)))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (ADVP (RB never)) (VP (VBD had) (NP (NP (DT an) (JJ abnormal) (NN release)) (PP (IN of) (NP (NN lipase)))) (PP (IN into) (NP (PRP$ his) (NN blood) (NN stream))))) (. .)))
( He ( ( ( ( ( ( had ( ( one episode ) ( of pancreatitis ) ) ) ( ( 15 years ) ago ) ) , ) and ) ( another ( in ( -LSB- ( ( ** ( 3139 ** ) ) -RSB- ) ) ) ) ) . ) )
( ( The patient ) ( ( ( has never ) ( ( had ( ( an ( abnormal release ) ) ( of lipase ) ) ) ( into ( his ( blood stream ) ) ) ) ) . ) )