| sometimes | 5 | temporal |
| head → cause → headache | 15 |
| head → lead to → headache | 7 |
| head → result in → headache | 4 |
| head → trigger → headache | 3 |
| negative | neutral | positive |
| 0.815 | 0.165 | 0.020 |
| Raw frequency | 29 |
| Normalized frequency | 0.430 |
| Modifier score | 0.450 |
| Perplexity | 235.759 |