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For instance , we show that when testing at lambda = 3 . 55 mu m , the Mid - IR sensor can distinguish hexane from the rest of the tested analytes ( methanol , toluene , carbon tetrachloride , ethanol and acetone ) , since hexane has a strong absorption from the aliphatic C - H stretch at lambda = 3 . 55 mu m .
 Chemical: hexane; Chemical: methanol; Chemical: toluene; Chemical: carbon tetrachloride; Chemical: ethanol; Chemical: acetone; Chemical: hexane; Chemical: C - H
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: hexane; Chemical: methanol; Chemical: toluene; Chemical: carbon tetrachloride; Chemical: ethanol; Chemical: acetone; Chemical: hexane; Chemical: C - H