3. The translation apparatus as set forth in claim 2 , wherein the comparator combines the textual similarity value and the structural similarity value to produce an overall similarity value.
3. The translation apparatus as set forth in claim 2 , wherein the comparator combines the textual similarity value and the structural similarity value to produce an overall similarity value. 4. The translation apparatus as set forth in claim 3 , wherein the comparator derives an overall similarity value by modifying the textual similarity value by the structural similarity value.