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:A recent storytelling task by Hendriks et al. (2014) confirmed this overall pattern but also highlighted that other factors can modulate this effect of the discourse stages. In the task used by Hendriks et al. (2014), participants were asked to tell picturebased stories featuring two characters of the same gender to a hypothetical listener.
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