| based on an observable event | 4 | other |
| by improving earlier designs | 2 | manner |
| invention → be → built | 21 |
| invention → be → constructed | 19 |
| invention → be constructed in → such a way | 3 |
| negative | neutral | positive |
| 0.092 | 0.738 | 0.170 |
| Raw frequency | 43 |
| Normalized frequency | 0.351 |
| Modifier score | 0.975 |
| Perplexity | 473.934 |