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The studies also resulted in the identification of two known tetronic acids , viridicatic acid and terrestric acid , found in ethyl acetate and n - butanol extracts .
 Chemical: tetronic acids; Chemical: viridicatic acid; Chemical: terrestric acid; Chemical: ethyl acetate; Chemical: n - butanol
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: tetronic acids; Chemical: viridicatic acid; Chemical: terrestric acid; Chemical: ethyl acetate; Chemical: n - butanol