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Signac and Seurat Signac came into contact with this technique through Seurat and the two became good friends .
 Signac, Seurat Signac, Seurat
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Signac, Seurat Signac, Seurat