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:Sechium edule fruit extract contains non-phenolic alkaloids, saponins, sterols, triterpenoids (Salama et al. 1986) and glycosylated flavonoids (Siciliano et al. 2004) that confer its anti-inflammatory (Salama et al. 1987), antihypertensive (Gordon et al. 2000), antimicrobial (Ordo~nez et al. 2003),…
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