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Furthermore , it opens new experimental possibilities such as studying graphene - graphene interaction at the nanoscale with the precision of an AFM or the exploration of properties in nonplanar graphene layers .
 Chemical: graphene; Chemical: graphene; 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; Chemical: graphene; Chemical: graphene