21702
The samples were characterised by high content of marine wax esters ( 55 - 67 mol % of lipid classes ) , of docosahexaenoic ( 22 : 6 n - 3 , 25 w % ) and oleic ( 18 : 1 n - 9 , 19 w % ) fatty acids .
 Chemical: esters; Chemical: docosahexaenoic; Chemical: oleic; 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: esters; Chemical: docosahexaenoic; Chemical: oleic; Chemical: fatty acids