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Life Horatio McCulloch was trained in the studio of the Glasgow landscape painter John Knox ( 1778 – 1845 ) for about one year and at first earned his living as a decorative painter .
 Horatio McCulloch, Glasgow
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Horatio McCulloch, Glasgow