3113
Owing to their unique physical and chemical properties , graphene and its derivatives such as graphene oxide ( GO ) , reduced graphene oxide ( RGO ) and GO - nanocomposites have attracted tremendous interest in many different fields including biomedicine in recent years .
 Chemical: graphene; Chemical: graphene oxide; 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: graphene; Chemical: graphene oxide; Chemical: reduced graphene oxide; Chemical: RGO