| suddenly | 4 | manner |
| since 7th of this month | 4 | temporal |
| sometimes | 2 | temporal |
| mother → have → headache | 11 |
| mother → complain of → headache | 9 |
| mother → experience → headache | 8 |
| mother → get → headache | 4 |
| mother → experience → severe headaches | 4 |
| mother → develop → headache | 3 |
| negative | neutral | positive |
| 0.733 | 0.213 | 0.053 |
| Raw frequency | 39 |
| Normalized frequency | 0.408 |
| Modifier score | 0.650 |
| Perplexity | 151.155 |