| Typicality: | 0.554 |
| Saliency: | 0.371 |
| each year | 4 | temporal |
| in september | 3 | temporal |
| in 2015 | 3 | temporal |
| passenger → use → heathrow | 9 |
| passenger → travel through → heathrow | 8 |
| passenger → travel to → heathrow | 6 |
| passenger → pass through → heathrow | 4 |
| negative | neutral | positive |
| 0.148 | 0.496 | 0.356 |
| Raw frequency | 27 |
| Normalized frequency | 0.371 |
| Modifier score | 0.950 |
| Perplexity | 120.586 |