61838
In the earliest nature prints , inks or pigments were applied directly to the relief surface of leaves and/or other relatively flat natural subjects in order to capture images of their sizes , shapes , surface textures , and delicate vein or scale patterns .
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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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