| about the cost | 14 | other |
| with performance | 12 | other |
| in its actual practical employment | 12 | other |
| reason → be → concerned | 212 |
| reason → be → concern | 97 |
| reason → be → the concern | 17 |
| reason → have → concern | 4 |
| negative | neutral | positive |
| 0.443 | 0.469 | 0.088 |
| Raw frequency | 330 |
| Normalized frequency | 0.673 |
| Modifier score | 0.568 |
| Perplexity | 23.409 |