151223
The disparity between the video monitor and the on-screen image , and between the repeating percussive sound and both the vertical roll and the tapping of a spoon to the camera lens , are examples of the use of de-synchronization as a conceptual tool for revealing the contingency of perceptual experience .
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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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