| Typicality: | 0.388 |
| Saliency: | 0.323 |
| after 20 years | 3 | temporal |
| permanently | 2 | manner |
| patent → enter → public domain | 11 |
| patent → fall into → public domain | 10 |
| patent → go into → public domain | 4 |
| patent → pass into → public domain | 3 |
| negative | neutral | positive |
| 0.224 | 0.639 | 0.137 |
| Raw frequency | 28 |
| Normalized frequency | 0.323 |
| Modifier score | 0.500 |
| Perplexity | 133.720 |