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:1http://owl.man.ac.uk/factplusplus 2http://kaon2.semanticweb.org/
 The meta-data is generated by code written for SWOOP [9], and provides the details of the expressivity (i.e. the constructs present in the ontology) together with the number of classes, object properties, data properties, individuals, class axioms, property axioms and individual axioms present.
Category: