26791
Quantitatively speaking , the ratio of the excimer emission to monomer emission changes from 50 to 0 when ECPS is dissolved in water and n - hexane , respectively .
 Chemical: n - hexane
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: n - hexane