| Typicality: | 0.474 |
| Saliency: | 0.525 |
| in the early 18th century | 9 | temporal |
| for shallow-draft vessels | 5 | purpose |
| from sudbury | 5 | location |
| river → become → navigable | 30 |
| river → be made → navigable | 29 |
| river → be rendered → navigable | 3 |
| negative | neutral | positive |
| 0.051 | 0.655 | 0.294 |
| Raw frequency | 62 |
| Normalized frequency | 0.525 |
| Modifier score | 0.500 |
| Perplexity | 140.327 |