| to the stone age | 5 | other |
| for proper nutrition and special care | 3 | purpose |
| back in time | 3 | other |
| year → take → step | 10 |
| year → be → another step | 3 |
| negative | neutral | positive |
| 0.040 | 0.519 | 0.441 |
| Raw frequency | 13 |
| Normalized frequency | 0.241 |
| Modifier score | 1.000 |
| Perplexity | 396.932 |