| very | 17 | degree |
| during the first trimester | 13 | temporal |
| in cases of lower back pain | 8 | other |
| nausea → be → common | 44 |
| nausea → be → common symptoms | 23 |
| nausea → be → common symptom | 16 |
| nausea → be → common condition | 6 |
| nausea → be → most common | 4 |
| nausea → be → common problem | 4 |
| negative | neutral | positive |
| 0.707 | 0.253 | 0.040 |
| Raw frequency | 97 |
| Normalized frequency | 0.778 |
| Modifier score | 0.900 |
| Perplexity | 37.111 |