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The results showed that PPT was eliminated rapidly from the body with an average t1 / 2 , lambda z value of 0 . 80h and CL of 4 . 27l / h / kg after i . v . administration , while PPD was eliminated relatively slowly with a t1 / 2 , lambda z of 6 . 25h and CL of 0 . 98l / h / kg .
 Chemical: PPT; Chemical: PPD
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: PPT; Chemical: PPD