9105
In this study we considered pyridinium - like , pyridine - like , cyanide - like , and amine - like nitrogens at armchair and zigzag edges and pyrrole - like nitrogen at armchair edge as well as graphite - like nitrogen at graphene interior site .
 Chemical: pyridinium; Chemical: pyridine; Chemical: cyanide; Chemical: amine; Chemical: nitrogens; Chemical: pyrrole; Chemical: nitrogen; Chemical: graphite; Chemical: nitrogen; 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: pyridinium; Chemical: pyridine; Chemical: cyanide; Chemical: amine; Chemical: nitrogens; Chemical: pyrrole; Chemical: nitrogen; Chemical: graphite; Chemical: nitrogen; Chemical: graphene