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The Ministry of Education has just formally apologized - 50 years after the fact - for the April 6 Incident , and a university president has been found guilty of plagiarizing a research paper .
 organization: The Ministry of Education; date: 50 years; event: the April 6 Incident
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:
 organization: The Ministry of Education; date: 50 years; event: the April 6 Incident