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A total of 30 adult male Sprague - Dawley rats were randomly divided into three groups of 10 animals each : control , Cd treated and Cd treated with QE .
 Chemical: Cd; Chemical: Cd
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Cd; Chemical: Cd