16323
Murine embryonic fibroblasts ( MEFs ) , utilized as an in vitro embryonic model system , demonstrated ~ 5 % reduction in global DNA methylation following exposure to 200mM ethanol .
 Chemical: ethanol
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: ethanol