| to obtain training | 9 | purpose |
| then ever | 3 | temporal |
| especially | 2 | other |
| pilot → be → certified | 51 |
| pilot → have → certification | 5 |
| pilot → receive → certification | 4 |
| pilot → seek to obtain → certification | 4 |
| pilot → obtain → certification | 4 |
| pilot → become → certified | 3 |
| pilot → hold → commercial certification | 3 |
| negative | neutral | positive |
| 0.072 | 0.661 | 0.267 |
| Raw frequency | 74 |
| Normalized frequency | 0.561 |
| Modifier score | 0.813 |
| Perplexity | 80.402 |