7502
The strong angular dependence of the CK and FK edge NEXAFS spectra on the incident radiation indicates that room - temperature - produced graphite fluoride is a highly anisotropic material , where half of the carbon atoms are covalently bonded with fluorine , while the rest of the carbon atoms preserve pi electrons .
 Chemical: graphite fluoride; Chemical: carbon; Chemical: fluorine
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: graphite fluoride, carbon, fluorine 
Answer:
 Chemical: graphite fluoride; Chemical: carbon; Chemical: fluorine