| Typicality: | 0.461 |
| Saliency: | 0.418 |
| for nearly 60 years | 7 | temporal |
| in related research | 5 | location |
| scientist → investigate → the possibility | 10 |
| scientist → study → the possibility | 7 |
| scientist → investigate → possibility | 5 |
| scientist → study → this possibility | 4 |
| scientist → help evaluate → that possibility | 3 |
| scientist → study → possibility | 3 |
| negative | neutral | positive |
| 0.172 | 0.658 | 0.170 |
| Raw frequency | 32 |
| Normalized frequency | 0.418 |
| Modifier score | 0.600 |
| Perplexity | 30.269 |