| in resolving existing well performance | 7 | other |
| often | 5 | degree |
| on the road to success | 5 | other |
| problem → be → required | 91 |
| problem → be → necessary | 69 |
| problem → be → require | 3 |
| negative | neutral | positive |
| 0.408 | 0.467 | 0.125 |
| Raw frequency | 163 |
| Normalized frequency | 0.472 |
| Modifier score | 0.493 |
| Perplexity | 187.290 |