2876
January 12 January March 5 March April 13 April May 6 May 24 May May 27 June 7 June 12 June August 1 August October 10 October November 5 November Unknown date References
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None