1637
Vitamin E plays an essential role in maintaining the structure and function of the nervous system , and its deficiency , commonly associated with fat malabsorption diseases , may reduce neuronal survival .
 Chemical: Vitamin E
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: Vitamin E