27267
In denuded aortic rings contracted by phenylephrine , a similar pattern was observed ( Emax = 92 . 7 +/- 6 . 5 % , EC50 = 1 . 8mg / ml ) .
 Chemical: phenylephrine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: phenylephrine 
Answer:
 Chemical: phenylephrine