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On the day before this visit, he had received the third of six serial weekly BCG bladder instillations for the treatment of bladder cancer.
 he: Subject; bladder cancer: Subject; he: Subject.Gender; the third of six serial weekly BCG bladder instillations: Treatment; bladder instillations: Treatment.Route; bladder cancer: Treatment.Disorder; BCG: Treatment.Drug; weekly: Treatment.Freq
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:
 he: Subject; bladder cancer: Subject; he: Subject.Gender; the third of six serial weekly BCG bladder instillations: Treatment; bladder instillations: Treatment.Route; bladder cancer: Treatment.Disorder; BCG: Treatment.Drug; weekly: Treatment.Freq