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Mice in the early stage of LP - BM5 MuLV disease were given AZT in their drinking water at 1 . 0 and 2 . 5 mg / ml .
 Chemical: AZT
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: AZT