His diarrhea acutely worsened over the past 24 hours- he had 8 large watery BMs over this time period.
 He has frequent stools 
(ROOT (S (NP (PRP$ His) (NN diarrhea)) (ADVP (RB acutely)) (VP (VBD worsened) (PP (IN over) (NP (DT the) (JJ past) (CD 24) (NNS hours))) (SBAR (S (: -) (NP (PRP he)) (VP (VBD had) (NP (CD 8) (JJ large) (JJ watery) (NNS BMs)) (PP (IN over) (NP (DT this) (NN time) (NN period))))))) (. .)))
(ROOT (S (NP (PRP He)) (VP (VBZ has) (NP (JJ frequent) (NNS stools)))))
( ( His diarrhea ) ( acutely ( ( ( worsened ( over ( the ( past ( 24 hours ) ) ) ) ) ( - ( he ( ( had ( 8 ( large ( watery BMs ) ) ) ) ( over ( this ( time period ) ) ) ) ) ) ) . ) ) )
( He ( has ( frequent stools ) ) )