20332
Unique all - graphene core - sheath fibers composed of a graphene fiber core with a sheath of 3D graphene network have been developed .
 Chemical: graphene; Chemical: graphene; Chemical: graphene
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, graphene 
Answer:
 Chemical: graphene; Chemical: graphene; Chemical: graphene