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After his experience in 1912 – 13 at a sanatorium where he was recovering from tuberculosis , he decided to devote himself full-time to writing plays ( the events immediately prior to going to the sanatorium are dramatized in his masterpiece , " Long Day 's Journey into Night " ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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