| as in the olden days | 4 | temporal |
| as antipsychotic medications | 3 | manner |
| in reducing stress | 2 | purpose |
| laughter → be → effective | 10 |
| laughter → be → effective way | 3 |
| laughter → be → efficient | 3 |
| negative | neutral | positive |
| 0.011 | 0.194 | 0.794 |
| Raw frequency | 16 |
| Normalized frequency | 0.290 |
| Modifier score | 0.500 |
| Perplexity | 284.273 |