| throughout history | 6 | temporal |
| by this date | 4 | temporal |
| historically | 2 | temporal |
| river → be used for → trade | 12 |
| river → be used for → commerce | 7 |
| negative | neutral | positive |
| 0.097 | 0.761 | 0.142 |
| Raw frequency | 19 |
| Normalized frequency | 0.320 |
| Modifier score | 0.800 |
| Perplexity | 107.846 |