| in preferred embodiments of the invention | 4 | other |
| very | 3 | degree |
| bridge → be → flexible | 21 |
| bridge → be designed to be → flexible | 5 |
| bridge → be → flexible structure | 4 |
| negative | neutral | positive |
| 0.071 | 0.553 | 0.376 |
| Raw frequency | 30 |
| Normalized frequency | 0.322 |
| Modifier score | 1.000 |
| Perplexity | 313.189 |