1. An information processing system comprising: a reasoning system comprising a plurality of different reasoning regions which correspond to respective ones of a plurality of different subject matter domains; wherein the different reasoning regions individually comprise at least one reasoning module; wherein the reasoning modules are configured to access a plurality of abstractions; wherein a reasoning module of a first of the reasoning regions is configured to process some of the abstractions according to rules of a first domain ontology which corresponds to one of the subject matter domains; and wherein a reasoning module of a second of the reasoning regions is configured to process others of the abstractions according to rules of a second domain ontology which corresponds to another of the subject matter domains.