3631
Selenium and Hg were provided as L - selenomethionine ( SeMet ) and methylmercury ( MeHg ) , respectively .
 Chemical: Selenium; Chemical: Hg; Chemical: L - selenomethionine; Chemical: SeMet; Chemical: methylmercury; Chemical: MeHg
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: Selenium; Chemical: Hg; Chemical: L - selenomethionine; Chemical: SeMet; Chemical: methylmercury; Chemical: MeHg