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Pressured by her suspicious husband , Madame de Merret swore upon a crucifix that there was no one in the closet , but threatened in turn to leave her husband if he were ever to open the closet out of suspicion .
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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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