10878
Mr. Mengistu is in an increasingly weak position : Half his army is tied down defending the northern city of Asmara from the Eritreans .
 person: Mengistu; cardinal: Half; geographical social political: Asmara; national religious political: Eritreans
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
 Entities: Mengistu, Half, Asmara, Eritreans 
Answer:
 person: Mengistu; cardinal: Half; geographical social political: Asmara; national religious political: Eritreans