| at last check | 4 | temporal |
| for scoliosis | 3 | purpose |
| to close the defect | 3 | purpose |
| child → need → surgery | 15 |
| child → undergo → surgery | 10 |
| child → have → surgery | 7 |
| child → require → surgery | 5 |
| child → be in → surgery | 3 |
| negative | neutral | positive |
| 0.480 | 0.441 | 0.079 |
| Raw frequency | 40 |
| Normalized frequency | 0.459 |
| Modifier score | 0.720 |
| Perplexity | 402.770 |