| everywhere in the mouth | 6 | location |
| from a lack of blood flow | 3 | cause |
| from eyelashes | 3 | location |
| ulcer → can → occur | 20 |
| ulcer → can → develop | 19 |
| ulcer → can → form | 5 |
| ulcer → can → result | 3 |
| ulcer → can → appear | 3 |
| negative | neutral | positive |
| 0.660 | 0.309 | 0.030 |
| Raw frequency | 50 |
| Normalized frequency | 0.712 |
| Modifier score | 0.500 |
| Perplexity | 70.593 |