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Polyunsaturated fatty acids ( PUFA ) were the dominant group of the fatty acids , being 80 % of the n - 3 family .
 Chemical: Polyunsaturated fatty acids; Chemical: PUFA; Chemical: fatty acids
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: Polyunsaturated fatty acids; Chemical: PUFA; Chemical: fatty acids