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Two pediatric oncology patients with Ewing's sarcoma and one with mixed germ cell tumor were treated with drug regimens that included bleomycin or cyclophosphamide.
 Two pediatric oncology patients with Ewing's sarcoma and one with mixed germ cell tumor: Subject; Two: Subject.Population; one: Subject.Population; pediatric: Subject.Age; drug regimens that included bleomycin or cyclophosphamide: Treatment; bleomycin: Treatment.Drug; cyclophosphamide: Treatment.Drug; Ewing's sarcoma: Treatment.Disorder; mixed germ cell tumor: 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:
 Two pediatric oncology patients with Ewing's sarcoma and one with mixed germ cell tumor: Subject; Two: Subject.Population; one: Subject.Population; pediatric: Subject.Age; drug regimens that included bleomycin or cyclophosphamide: Treatment; bleomycin: Treatment.Drug; cyclophosphamide: Treatment.Drug; Ewing's sarcoma: Treatment.Disorder; mixed germ cell tumor: Treatment.Disorder