12069
In contrast , complex I substrates malate and glutamate failed to support H2O2 production in the presence of Mn ( 2 + ) .
 Chemical: malate; Chemical: glutamate; 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: malate; Chemical: glutamate; Chemical: H2O2; Chemical: Mn ( 2 + )