| on their return migration | 3 | temporal |
| by the late 19th century | 2 | temporal |
| pink → be → abundant | 4 |
| pink → be → common | 3 |
| pink → be → prevalent | 3 |
| negative | neutral | positive |
| 0.157 | 0.497 | 0.345 |
| Raw frequency | 10 |
| Normalized frequency | 0.297 |
| Modifier score | 0.500 |
| Perplexity | 334.998 |