15758
It is believed that further carbon coating is a facile and effective way to improve the electrochemical performance of LiFePO ( 4 ) - PC .
 Chemical: carbon; Chemical: LiFePO ( 4 )
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: carbon, LiFePO ( 4 ) 
Answer:
 Chemical: carbon; Chemical: LiFePO ( 4 )