1889
BACKGROUND: Hydroxyurea is a cytostatic agent used to treat myeloproliferative disorders and long-term treatment is associated with mucocutaneous adverse events and nail hyperpigmentation.
 mucocutaneous adverse events and nail hyperpigmentation: Effect; Hydroxyurea is a cytostatic agent: Treatment; Hydroxyurea: Treatment.Drug; myeloproliferative disorders: 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: 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:
 mucocutaneous adverse events and nail hyperpigmentation: Effect; Hydroxyurea is a cytostatic agent: Treatment; Hydroxyurea: Treatment.Drug; myeloproliferative disorders: Treatment.Disorder