1240
Subjects received the tonically stimulating dopamine - receptor agonist pergolide ( 0 . 1 mg ) vs placebo 120 min before training on each training day .
 Chemical: dopamine; Chemical: pergolide
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: dopamine; Chemical: pergolide