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We report the first case of a patient in a promethazine-induced coma responding to treatment with flumazenil.
 a patient in a promethazine-induced coma: Subject; treatment with flumazenil: Treatment; flumazenil: Treatment.Drug; promethazine: Treatment.Drug; coma: Treatment.Disorder
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: potential therapeutic event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Treatment.Time_elapsed, Subject.Disorder, Subject.Race, Treatment.Route, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 a patient in a promethazine-induced coma: Subject; treatment with flumazenil: Treatment; flumazenil: Treatment.Drug; promethazine: Treatment.Drug; coma: Treatment.Disorder