| because of a motorcycle accident | 4 | cause |
| in the hospital | 3 | location |
| last week | 2 | temporal |
| son → have → surgery | 14 |
| son → be in → surgery | 4 |
| negative | neutral | positive |
| 0.409 | 0.498 | 0.093 |
| Raw frequency | 18 |
| Normalized frequency | 0.300 |
| Modifier score | 0.500 |
| Perplexity | 82.638 |