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Folates , such as [ 6S ] - 5 - methyltetrahydrofolic acid , have been introduced in the market both in vitamin pills and in fortified foods .
 Chemical: Folates; Chemical: [ 6S ] - 5 - methyltetrahydrofolic acid
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: Folates; Chemical: [ 6S ] - 5 - methyltetrahydrofolic acid