766
A toxic encephalopathy characterized by depressed level of consciousness, marked irritability, and ataxia developed in seven children, 5 years of age and younger, following administration of an antiemetic combination of pentobarbital and pyrilamine maleate.
 seven children, 5 years of age and younger: Subject; seven: Subject.Population; children, 5 years of age and younger: Subject.Age; A toxic encephalopathy characterized by depressed level of consciousness, marked irritability, and ataxia: Effect; administration of an antiemetic combination of pentobarbital and pyrilamine maleate: Treatment; pentobarbital: Treatment.Drug; pyrilamine maleate: Treatment.Drug; pentobarbital: Combination.Drug; pyrilamine maleate: Combination.Drug
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 seven children, 5 years of age and younger: Subject; seven: Subject.Population; children, 5 years of age and younger: Subject.Age; A toxic encephalopathy characterized by depressed level of consciousness, marked irritability, and ataxia: Effect; administration of an antiemetic combination of pentobarbital and pyrilamine maleate: Treatment; pentobarbital: Treatment.Drug; pyrilamine maleate: Treatment.Drug; pentobarbital: Combination.Drug; pyrilamine maleate: Combination.Drug