3829
These findings are consistent with l - MPH competitively inhibiting presystemic CES1 metabolism of d - MPH .
 Chemical: l - MPH; Chemical: d - MPH
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: l - MPH; Chemical: d - MPH