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Consequently , the CMGNR - SCs showed a specific capacitance as high as 160 F g ( - 1 ) , three - fold higher than that of conventional graphene SCs , and a capacitance retention of > 95 % of the maximum value even after severe bending and 1000 charge - discharge tests due to the structural and compositional features .
 Chemical: graphene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: graphene