| previously | 16 | temporal |
| recently | 10 | temporal |
| so far | 9 | other |
| mutation → be → described | 116 |
| mutation → be → characterized | 28 |
| mutation → be → expressed | 18 |
| mutation → be → characterised | 3 |
| negative | neutral | positive |
| 0.253 | 0.700 | 0.047 |
| Raw frequency | 165 |
| Normalized frequency | 0.811 |
| Modifier score | 0.327 |
| Perplexity | 111.832 |