HISTORY OF PRESENT ILLNESS:  This is a 64 year old female who was having chest pain, pressure and increasing shortness of breath on exertion.
 patient has a pulmonary embolism
(ROOT (NP (NP (NP (NP (NN HISTORY)) (PP (IN OF) (NP (JJ PRESENT) (NNS ILLNESS)))) (: :) (S (NP (DT This)) (VP (VBZ is) (NP (NP (DT a) (CD 64) (NN year) (JJ old) (NN female)) (SBAR (WHNP (WP who)) (S (VP (VBD was) (VP (VBG having) (NP (NN chest) (NN pain))))))))) (, ,) (NP (NP (NN pressure)) (CC and) (NP (NP (VBG increasing) (NN shortness)) (PP (IN of) (NP (NN breath))) (PP (IN on) (NP (NN exertion)))))) (. .)))
(ROOT (S (NP (NN patient)) (VP (VBZ has) (NP (DT a) (JJ pulmonary) (NN embolism)))))
( ( ( ( ( ( HISTORY ( OF ( PRESENT ILLNESS ) ) ) : ) ( This ( is ( ( a ( 64 ( year ( old female ) ) ) ) ( who ( was ( having ( chest pain ) ) ) ) ) ) ) ) , ) ( ( pressure and ) ( ( ( increasing shortness ) ( of breath ) ) ( on exertion ) ) ) ) . )
( patient ( has ( a ( pulmonary embolism ) ) ) )