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Preissler also wrote on the academically neglected topics such as ornament and flower-drawing ( in 1725 ) and landscape drawing ( 1739 ) , though throughout his writing he insisted that these were only beginners ' lessons .
 Preissler
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Preissler