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Furthermore , the inhibition of HO - 1 activity , by tin mesoporphyrin , caused a complete restoration of MeHg - mediated inhibition of CYP1A1 activity , induced by TCDD .
 Chemical: tin mesoporphyrin; Chemical: MeHg; Chemical: TCDD
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: tin mesoporphyrin; Chemical: MeHg; Chemical: TCDD