85098
According to Ulema , this is the day when the heads of the key murderers in the battle of Karbala , Umar ibn Sa'ad and Ubayd-Allah ibn Ziyad , who were killed by Mukhtar , reached Imam Zainul Abedeen and brought a smile on his face .
 person: Umar ibn Sa'ad; person: Ubayd-Allah ibn Ziyad; person: Imam Zainul Abedeen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Umar ibn Sa'ad, Ubayd-Allah ibn Ziyad, Imam Zainul Abedeen 
Answer:
 person: Umar ibn Sa'ad; person: Ubayd-Allah ibn Ziyad; person: Imam Zainul Abedeen