| each year | 5 | temporal |
| earlier | 2 | temporal |
| by studying wings of bats | 2 | manner |
| design → be → created | 11 |
| design → be → produced | 6 |
| design → be → made | 4 |
| negative | neutral | positive |
| 0.081 | 0.605 | 0.314 |
| Raw frequency | 21 |
| Normalized frequency | 0.580 |
| Modifier score | 1.000 |
| Perplexity | 298.417 |