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:First and foremost, consistent with our previous work (Leonard and Baum, 1998; Leonard et al., 1997a, 1997b), the results of this study represent yet another demonstration of the ability of RHD individuals to use a given type of contextual information, even under conditions of increased
processing…
Category: