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Accumulation profiles of fatty acids and alpha - tocopherol were analysed at three ripening stages in the seed oils of Primula and Echium species .
 Chemical: fatty acids; Chemical: alpha - tocopherol
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: fatty acids; Chemical: alpha - tocopherol