| from the surface | 9 | location |
| according to this definition | 8 | other |
| during our study | 3 | temporal |
| trench → be → excavated | 106 |
| trench → be → excavation | 9 |
| trench → be excavated to → depth | 4 |
| trench → be → uncovered | 3 |
| negative | neutral | positive |
| 0.161 | 0.782 | 0.057 |
| Raw frequency | 122 |
| Normalized frequency | 0.860 |
| Modifier score | 1.000 |
| Perplexity | 144.612 |