11427
The intrinsic clearance for R - and S - EDDP formation from racemic methadone was diminished approximately 6 - fold and 3 - fold for R - and S - methadone , respectively .
 Chemical: R - and S - EDDP; Chemical: racemic methadone; Chemical: R - and S - methadone
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: R - and S - EDDP; Chemical: racemic methadone; Chemical: R - and S - methadone