Straccia, Umberto, Nuno Lopes, Gergely Lukacsy, and Axel Polleres. 2010. “A General Framework for Representing and Reasoning With Annotated Semantic Web Data”. Proceedings of the AAAI Conference on Artificial Intelligence 24 (1):1437-42. https://doi.org/10.1609/aaai.v24i1.7499.