1552
Amalgams are about 50 % mercury ( Hg ) , and Hg is known to significantly accumulate in the kidney .
 Chemical: mercury; Chemical: Hg; Chemical: Hg
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: mercury; Chemical: Hg; Chemical: Hg