| a few weeks | 4 | temporal |
| multiple times | 2 | temporal |
| supernova → be → observed | 19 |
| supernova → be → discovered | 8 |
| supernova → be → detected | 6 |
| supernova → be → identified | 4 |
| negative | neutral | positive |
| 0.058 | 0.810 | 0.132 |
| Raw frequency | 37 |
| Normalized frequency | 0.784 |
| Modifier score | 0.450 |
| Perplexity | 162.885 |