| from multi-vineyard sites | 4 | location |
| of lower quality | 2 | other |
| port → be made from → grape | 8 |
| port → be made from → grapes of a single vintage | 4 |
| negative | neutral | positive |
| 0.079 | 0.778 | 0.143 |
| Raw frequency | 12 |
| Normalized frequency | 0.222 |
| Modifier score | 0.500 |
| Perplexity | 280.677 |