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Among his chief works are the two paintings , Going to School and Coming from School , The Little Glutton ( his first exhibited picture ) and L'Exercice ( in the 19th century this work was in John Jacob Astor 's collection ) .
 John Jacob Astor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 John Jacob Astor