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Louis Lingg ( 1864 – 1887 ) was a German immigrant and anarchist who committed suicide while in jail after being convicted and sentenced to hang as a member of a criminal conspiracy behind the Haymarket Square bombing .
 Louis Lingg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Louis Lingg