Pulse returned at 7:05.
 The patient has a history of heart disease  
(ROOT (S (NP (NN Pulse)) (VP (VBD returned) (PP (IN at) (NP (CD 7:05)))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (NP (DT a) (NN history)) (PP (IN of) (NP (NN heart) (NN disease)))))))
( Pulse ( ( returned ( at 7:05 ) ) . ) )
( ( The patient ) ( has ( ( a history ) ( of ( heart disease ) ) ) ) )