7897
It was learned that the " Duan & Duan Law Firm " in Shanghai was founded in 1993 by Qihua Duan , a lawyer who returned to China with a US Master 's degree .
 organization: the " Duan & Duan Law Firm "; geographical social political: Shanghai; date: 1993; person: Qihua Duan; geographical social political: China; geographical social political: US; work of art: Master 's degree
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: the " Duan & Duan Law Firm ", Shanghai, 1993, Qihua Duan, China, US, Master 's degree 
Answer:
 organization: the " Duan & Duan Law Firm "; geographical social political: Shanghai; date: 1993; person: Qihua Duan; geographical social political: China; geographical social political: US; work of art: Master 's degree