2481
Bonding and electronic transport properties of fullerene and fullerene derivatives in break - junction geometries .
 Chemical: fullerene; Chemical: fullerene
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: fullerene, fullerene 
Answer:
 Chemical: fullerene; Chemical: fullerene