| regardless of their environment | 9 | other |
| often | 6 | temporal |
| the night before | 4 | temporal |
| child → have → nightmare | 76 |
| child → experience → nightmare | 14 |
| child → start having → nightmare | 5 |
| child → suffer → nightmare | 4 |
| negative | neutral | positive |
| 0.690 | 0.268 | 0.042 |
| Raw frequency | 99 |
| Normalized frequency | 0.494 |
| Modifier score | 0.638 |
| Perplexity | 108.275 |