8204
Regulation of H2O2 stress - responsive genes through a novel transcription factor in the protozoan pathogen Entamoeba histolytica .
 Chemical: H2O2
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: H2O2