| monthly | 8 | temporal |
| for each carrier | 2 | transitive-object |
| surcharge → can → change | 9 |
| surcharge → can → vary | 5 |
| surcharge → be → different | 3 |
| negative | neutral | positive |
| 0.108 | 0.848 | 0.044 |
| Raw frequency | 17 |
| Normalized frequency | 0.391 |
| Modifier score | 0.800 |
| Perplexity | 246.006 |