| free of charge | 9 | manner |
| every year | 8 | temporal |
| from many | 5 | other |
| tube → be → replaced | 167 |
| tube → require → replacement | 6 |
| tube → be → replacement | 3 |
| tube → need → replacement | 3 |
| negative | neutral | positive |
| 0.460 | 0.465 | 0.075 |
| Raw frequency | 179 |
| Normalized frequency | 0.762 |
| Modifier score | 0.818 |
| Perplexity | 131.925 |