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We analysed FA and ( 6S ) - 5 - methyltetrahydrofolic acid ( ( 6S ) - 5 - CH3 - H4PteGlu ) content in ready - to - eat cereals ( RTEC ) ( n = 68 ) and cow ' s milk ( n = 25 ) by a previously validated affinity chromatography - HPLC method .
 Chemical: ( 6S ) - 5 - methyltetrahydrofolic acid; Chemical: ( 6S ) - 5 - CH3 - H4PteGlu
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: ( 6S ) - 5 - methyltetrahydrofolic acid; Chemical: ( 6S ) - 5 - CH3 - H4PteGlu