9160
OlfGST pi and rho exhibited thiol oxidoreductase activity toward 2 - hydroxyethyl disulfide ( 2 - HEDS ) and conjugated 4 - hydroxynonenal ( HNE ) , a toxic aldehyde with neurodegenerative properties .
 Chemical: thiol; Chemical: 2 - hydroxyethyl disulfide; Chemical: 2 - HEDS; Chemical: 4 - hydroxynonenal; Chemical: HNE; Chemical: aldehyde
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: thiol; Chemical: 2 - hydroxyethyl disulfide; Chemical: 2 - HEDS; Chemical: 4 - hydroxynonenal; Chemical: HNE; Chemical: aldehyde