| Typicality: | 0.460 |
| Saliency: | 0.491 |
| in the national airspace | 6 | location |
| to control a particular pollutant | 5 | purpose |
| for operators | 3 | transitive-object |
| agency → develop → rule | 31 |
| agency → craft → rule | 5 |
| agency → formulate → rule | 5 |
| agency → developed → rule | 3 |
| agency → devise → rule | 3 |
| negative | neutral | positive |
| 0.135 | 0.751 | 0.114 |
| Raw frequency | 47 |
| Normalized frequency | 0.491 |
| Modifier score | 0.500 |
| Perplexity | 89.088 |