| because of the high risk of infection | 5 | cause |
| rarely | 3 | degree |
| particularly | 3 | degree |
| ulcer → be → dangerous | 8 |
| ulcer → be → threatening | 4 |
| ulcer → be → risk | 3 |
| negative | neutral | positive |
| 0.794 | 0.175 | 0.031 |
| Raw frequency | 15 |
| Normalized frequency | 0.407 |
| Modifier score | 0.400 |
| Perplexity | 63.654 |