| behind, | 8 | location |
| sometimes | 2 | temporal |
| sinusitis → cause → headache | 18 |
| sinusitis → be characterized by → headache | 9 |
| sinusitis → result in → headache | 4 |
| negative | neutral | positive |
| 0.832 | 0.158 | 0.009 |
| Raw frequency | 31 |
| Normalized frequency | 0.611 |
| Modifier score | 0.600 |
| Perplexity | 124.788 |