3831
These data indicate that chromatic processing in areas V1 and V2 is normal after V4 lesions and , together with the behavioural evidence , that these areas are sufficient for some basic aspects of colour perception .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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