5638
New horizons for diagnostics and therapeutic applications of graphene and graphene oxide .
 Chemical: graphene; Chemical: graphene oxide
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, graphene oxide 
Answer:
 Chemical: graphene; Chemical: graphene oxide