| to answer the questions | 19 | purpose |
| absolutely | 8 | degree |
| in that particular area | 6 | location |
| research → be → necessary | 139 |
| research → be → required | 58 |
| negative | neutral | positive |
| 0.176 | 0.626 | 0.198 |
| Raw frequency | 197 |
| Normalized frequency | 0.838 |
| Modifier score | 0.500 |
| Perplexity | 26.203 |