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We have recently reported that divalent Mn ( Mn ( 2 + ) ) stimulates brain microglia to produce and release hydrogen peroxide ( H2O2 ) , and microglial - free radical generation facilitates Mn ( 2 + ) - induced dopaminergic neurotoxicity .
 Chemical: divalent Mn; Chemical: Mn ( 2 + ); Chemical: hydrogen peroxide; Chemical: H2O2; Chemical: Mn ( 2 + )
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: divalent Mn; Chemical: Mn ( 2 + ); Chemical: hydrogen peroxide; Chemical: H2O2; Chemical: Mn ( 2 + )