| Typicality: | 0.533 |
| Saliency: | 0.572 |
| successfully | 7 | manner |
| based on prior art | 4 | other |
| repeatedly | 3 | degree |
| patent → be → challenged | 145 |
| patent → be subject to → challenge | 5 |
| patent → be under → challenge | 3 |
| patent → be challenged in → addition | 3 |
| negative | neutral | positive |
| 0.360 | 0.569 | 0.071 |
| Raw frequency | 156 |
| Normalized frequency | 0.572 |
| Modifier score | 0.620 |
| Perplexity | 62.082 |