| in ancient times | 2 | temporal |
| plant → be used for → shelter | 19 |
| plant → be used as → shelter | 3 |
| plant → be used to make → shelter | 3 |
| negative | neutral | positive |
| 0.038 | 0.705 | 0.257 |
| Raw frequency | 25 |
| Normalized frequency | 0.351 |
| Modifier score | 0.900 |
| Perplexity | 104.439 |