| Typicality: | 0.778 |
| Saliency: | 0.983 |
| for three years | 158 | temporal |
| for 10 years | 153 | temporal |
| for one year | 123 | temporal |
| certificate → be → valid | 2720 |
| certificate → appear → valid | 8 |
| certificate → be in → valid | 3 |
| negative | neutral | positive |
| 0.070 | 0.674 | 0.255 |
| Raw frequency | 2731 |
| Normalized frequency | 0.983 |
| Modifier score | 0.832 |
| Perplexity | 181.904 |