3578
How Hg ( II ) can quench the CHEF effect by pi - contact with fluorophores such as the anthracenyl group , which at first sight might not seem able to bond with metal ions , is examined .
 Chemical: Hg ( II ); Chemical: anthracenyl
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: Hg ( II ); Chemical: anthracenyl