14974
Forty - five rats ( five Long - Evans Tokushima Otsuka and 40 Otsuka Long - Evans Tokushima Fatty [ OLETF ] rats ) received chew diets for 10months ; after this period .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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