2. The computer-implemented method of claim 1 , wherein the preprocessing comprises: matching the prefix and the trailing context in the first document with the matching prefixes in the transformation database.
2. The computer-implemented method of claim 1 , wherein the preprocessing comprises: matching the prefix and the trailing context in the first document with the matching prefixes in the transformation database. 3. The computer-implemented method of claim 2 , wherein the matching further comprises matching a preceding context with a preceding context in the transformation database, wherein the preceding context is a third string of tokens that precede the prefix.