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Sprague - Dawley rats were randomly divided into five groups : control group , PTU group , PTU + Vit E group , PTU + L - T4 group , and PTU + L - T4 + Vit E group .
 Chemical: PTU; Chemical: PTU; Chemical: Vit E; Chemical: PTU; Chemical: L - T4; Chemical: PTU; Chemical: L - T4; Chemical: Vit E
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PTU, PTU, Vit E, PTU, L - T4, PTU, L - T4, Vit E 
Answer:
 Chemical: PTU; Chemical: PTU; Chemical: Vit E; Chemical: PTU; Chemical: L - T4; Chemical: PTU; Chemical: L - T4; Chemical: Vit E