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:…the Care Pathway Having this information as input (in the form of HPDL domain and problem files), the IACTIVE planner can find a solution for the problem of obtaining a plan tailored to a patient profile (step 3 of Figure 5.6), while respecting the available resources [Fdez-Olivares et al., 2011a].
Category: