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:One interesting exception to this pattern has recently been reported by Hendriks et al. (2014), who observed a strong rate of definite references at a point in their stories at which they expected their second character to be maintained in focus (their “Maintain-2” condition; see also Contemori and…
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