| Typicality: | 0.585 |
| Saliency: | 0.481 |
| in scientific understanding of our planet | 10 | transitive-object |
| always | 6 | temporal |
| historically | 4 | temporal |
| u.s. → played → major role | 9 |
| u.s. → played → key role | 9 |
| u.s. → played → role | 6 |
| u.s. → played → important role | 6 |
| u.s. → played → pivotal role | 3 |
| negative | neutral | positive |
| 0.213 | 0.570 | 0.217 |
| Raw frequency | 33 |
| Normalized frequency | 0.481 |
| Modifier score | 0.900 |
| Perplexity | 10.273 |