26734
Large Areal Mass , Flexible and Free - Standing Reduced Graphene Oxide / Manganese Dioxide Paper for Asymmetric Supercapacitor Device .
 Chemical: Graphene Oxide; Chemical: Manganese Dioxide
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: Graphene Oxide, Manganese Dioxide 
Answer:
 Chemical: Graphene Oxide; Chemical: Manganese Dioxide