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Comrades attending the symposium pointed out that commemorating the 50th anniversary of the Southern Anhui Incident possesses important realism and meaning towards carrying on and fostering the fine traditions of the New Fourth Army , gaining historical experience , promoting Army reforms and build up .
 ordinal: 50th; event: the Southern Anhui Incident; organization: the New Fourth Army
Please list all entity words in the text that fit the category.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} 
Answer:
 ordinal: 50th; event: the Southern Anhui Incident; organization: the New Fourth Army