13994
Unlike CsoR , CstR does not form a stable complex with transition metals but instead reacts with sulfite to form a mixture of di - and trisulfide species , CstR2 ( RS - SR ' ) and CstR2 ( RS - S - SR ' ) n ) n = 1 or 2 , respectively .
 Chemical: transition metals; Chemical: sulfite; Chemical: di - and trisulfide; Chemical: RS - SR '; Chemical: RS - S - SR '
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: transition metals; Chemical: sulfite; Chemical: di - and trisulfide; Chemical: RS - SR '; Chemical: RS - S - SR '