9127
The underlying mechanism involved in the vasodilator effect of 1 - nitro - 2 - phenylethane was investigated in rat aorta .
 Chemical: 1 - nitro - 2 - phenylethane
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: 1 - nitro - 2 - phenylethane