466
This work reports variations in the yields and quality of volatiles produced from Eucalyptus citriodora leaves by different hydrodistillation ( HD ) and supercritical carbon dioxide extraction ( SCE ) techniques .
 Chemical: carbon dioxide
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: carbon dioxide 
Answer:
 Chemical: carbon dioxide