| from simple facts | 13 | other |
| greatly | 10 | degree |
| from lack of ventilation | 4 | cause |
| reason → can → vary | 66 |
| reason → could → vary | 7 |
| reason → vary by → other factors | 5 |
| negative | neutral | positive |
| 0.386 | 0.522 | 0.093 |
| Raw frequency | 78 |
| Normalized frequency | 0.467 |
| Modifier score | 0.500 |
| Perplexity | 94.890 |