| Typicality: | 0.250 |
| Saliency: | 0.000 |
| for ecology | 5 | purpose |
| for other classes | 3 | transitive-object |
| arboretum → serve as → living laboratory | 3 |
| negative | neutral | positive |
| 0.003 | 0.654 | 0.343 |
| Raw frequency | 3 |
| Normalized frequency | 0.000 |
| Modifier score | 0.500 |
| Perplexity | 21.078 |