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Drinking water exposure of F344 / N rats and B6C3F1 mice to an Aloe vera whole - leaf extract ( 1 , 2 , and 3 % ) for 13 weeks resulted in goblet cell hyperplasia of the large intestine in both species .
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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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