Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Secondly, we generated random AFs using afgen generator from [37] under the Erdös-Renýi random graph model, generating a total of 50 AFs using 630 and 1% as the number of arguments and the edge probability, respectively.
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