2. The system for creating new concepts in existing ontologies according to claim 1 , wherein in the case that there are many description parts, the relation among the description parts is one of AND/OR/NOT.
2. The system for creating new concepts in existing ontologies according to claim 1 , wherein in the case that there are many description parts, the relation among the description parts is one of AND/OR/NOT. 3. The system for creating new concepts in existing ontologies according to claim 2 , wherein the normalizer comprises: a normalized description identifier for identifying whether a received new concept description is a normalized concept description and directly outputting the concept description identified as a normalized one; and a description normalizer connected with the normalized description identifier, for parsing the concept description which is identified as an un-normalized concept description by the normalized description identifier, transforming the un-normalized concept description into a normalized one, and then outputting the transformed normalized concept description.