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:Some of the examples are typical partial deduction benchmarks (see [Lam and Kusalik, 1991; Leuschel, 1998]) adapted to a functional logic syntax, while others come from the literature of functional program transformations, such as positive supercompilation [Sørensen et al., 1996], fold/unfold…
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