Case Report. Child S.L: 8 years old, was admitted to the Shaab hospital on the 8th. January, 1973 with symptoms of abdominal enlargement noticed a month ago. She came from Nuba Mountains and resident in Omdurman. Although it was difficult to communicate, we could get that there was no pain, no disturbance of bowel habit, 110 problem in micturition and no loss in weight. Appetite was good. She w...

The PIE (Principar-driven Information Extraction) system takes a different approach to the problem o f information extraction from the NUBA system that was used in MUC-5 . The NUBA system did not have a parser and relies on an abductive reasoner to construct the semantic relationships between domain specifi c concepts mentioned in a sentence . The PIE system, on the other hand, relies heavily o...