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:5
The first set of experiments consists of a subset of the FedBench (Schmidt et al. 2011) benchmark and aims to
5See (Schmidt et al. 2011; Dolby et al. 2007) for additional information on the datasets used.
compare our approach to the FedX and Alibaba.
Category: