1043
The IC50 of Prasaplai extracts expressed as milligram of powdered preparation per millilitre of perfusion solution for acetylcholine , oxytocin and PGE2 were 11 . 70 , 10 . 00 and 5 . 75 mg mL ( - 1 ) , respectively .
 Chemical: acetylcholine; Chemical: oxytocin; Chemical: PGE2
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: acetylcholine; Chemical: oxytocin; Chemical: PGE2