14861
Reduced graphene oxide ( rGO ) is a promising material for a variety of thin - film optoelectronic applications .
 Chemical: Reduced graphene oxide; Chemical: rGO
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: Reduced graphene oxide; Chemical: rGO