| the lower back, | 8 | location |
| severely | 5 | degree |
| by life style | 5 | cause |
| symptom → be → affected | 32 |
| symptom → can → affect | 12 |
| symptom → be → involved | 12 |
| symptom → be → affecting | 6 |
| symptom → can → contribute | 5 |
| symptom → be → influenced | 3 |
| negative | neutral | positive |
| 0.551 | 0.401 | 0.048 |
| Raw frequency | 70 |
| Normalized frequency | 0.425 |
| Modifier score | 0.700 |
| Perplexity | 71.061 |