12973
Studies on the mode - of - action of arsenite indicate that it can also act as co - carcinogen or as a cancer promoter , and that it can facilitate progression of cancers .
 Chemical: arsenite
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: arsenite