ConceptNet is a freely available commonsense knowledgebase and natural-language-processing toolkit which supports many practical textual-reasoning tasks over real-world documents right out-of-the-box (without additional statistical training) including
S. Staab, T. Walter, G. Gröner, und F. Silva Parreiras. Reasoning Web: Semantic Technologies for Software Engineering, Volume 6325 von Lecture Notes in Computer Science, Springer, Berlin, (2010)
F. Riguzzi, E. Bellodi, E. Lamma, und R. Zese. Web Reasoning and Rule Systems: 7th International Conference, RR 2013, Mannheim, Germany, Volume 7994 von Lecture Notes in Computer Science, Springer, Heidelberg, (2013)