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He is best known for introducing the atomic theory into chemistry , and for his research into colour blindness , sometimes referred to as Daltonism in his honour .
 person: Daltonism
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Daltonism