29723
At the time Wang Chunqing was in charge of seismic work for the Qinglong County Scientific Committee , and it was he who first brought news of the great earthquake back to Qinglong .
 Wang Chunqing, the Qinglong County Scientific Committee, first, Qinglong
Please list all entity words in the text that fit the category. Output format is "word1, 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} 
Answer:
 Wang Chunqing, the Qinglong County Scientific Committee, first, Qinglong