19255
The volunteers drank 500ml / day beverage without silymarin and l - arginine for 10days followed , after a 7 - day washout period , by the beverage with 400mg silymarin and 295mg l - arginine for 10days .
 Chemical: l - arginine; Chemical: l - arginine
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 - arginine; Chemical: l - arginine