| Typicality: | 0.562 |
| Saliency: | 0.729 |
| during treatment | 3 | temporal |
| nitrous oxide → inhale through → small mask | 14 |
| nitrous oxide → be inhaled through → mask | 13 |
| nitrous oxide → inhale through → mask | 4 |
| nitrous oxide → be inhaled through → a nasal mask | 3 |
| nitrous oxide → be inhaled through → small mask | 3 |
| negative | neutral | positive |
| 0.111 | 0.532 | 0.357 |
| Raw frequency | 37 |
| Normalized frequency | 0.729 |
| Modifier score | 0.500 |
| Perplexity | 36.901 |