7646
Surfactant - free microemulsion composed of oleic acid , n - propanol , and H2O .
 Chemical: oleic acid; Chemical: n - propanol; Chemical: H2O
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: oleic acid; Chemical: n - propanol; Chemical: H2O