13898
Overexposure to manganese ( Mn ) has been known to induce neuronal damage .
 Chemical: manganese; Chemical: Mn
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: manganese, Mn 
Answer:
 Chemical: manganese; Chemical: Mn