Table 2. Distribution summary of question categories in the UIUC Question dataset.
| Category | Training | Testing | Category | Training | Testing |
|---|---|---|---|---|---|
| DESCRIPTION | 1159 | 96 | HUMAN | 1,218 | 68 |
| Reason | 190 | 8 | Other | 216 | 12 |
| Manner | 274 | 2 | Description | 26 | 4 |
| Definition | 422 | 124 | Group | 48 | 8 |
| ABBREVIATION | 84 | 9 | Creative | 208 | 0 |
| Currency | 4 | 4 | Animal | 110 | 15 |
| Religion | 4 | 0 | Individual | 190 | 58 |
| Plant | 14 | 6 | Title | 960 | 1 |
| ENTITY | 1252 | 96 | LOCATION | 836 | 82 |
| Body | 15 | 3 | City | 130 | 20 |
| Letter | 9 | 0 | State | 70 | 10 |
| Instrument | 10 | 2 | Mountain | 24 | 5 |
| Symbol | 11 | 3 | Country | 152 | 4 |
| Lang | 16 | 2 | NUMERIC | 900 | 226 |
| Technique | 34 | 6 | Temp | 8 | 4 |
| Word | 25 | 3 | Date | 221 | 48 |
| Vehicle | 28 | 5 | Weight | 12 | 4 |
| Product | 40 | 5 | Code | 8 | 2 |
| Substance | 40 | 14 | Speed | 10 | 5 |
| Color | 40 | 10 | Period | 30 | 9 |
| Food | 102 | 4 | Size | 16 | 0 |
| Term | 94 | 8 | Distance | 35 | 15 |
| Sport | 62 | 1 | Money | 70 | 4 |
| Event | 58 | 4 | Count | 368 | 9 |