| in the leg | 5 | location |
| by taking aspirin | 5 | manner |
| frequently | 2 | temporal |
| ulcer → be → caused | 36 |
| ulcer → cause → problem | 5 |
| ulcer → can → cause | 3 |
| ulcer → be caused by → problem | 3 |
| negative | neutral | positive |
| 0.798 | 0.191 | 0.011 |
| Raw frequency | 47 |
| Normalized frequency | 0.696 |
| Modifier score | 0.800 |
| Perplexity | 84.672 |