2083
These results indicate that Aloe vera whole - leaf extract is an intestinal irritant in F344 / N rats and B6C3F1 mice and a carcinogen of the large intestine in F344 / N rats .
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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:
 None