| up to its maximum design pressure | 8 | other |
| to ensure their flawlessness | 7 | purpose |
| fully | 6 | degree |
| valve → be → tested | 97 |
| valve → be tested for → performance | 10 |
| valve → be tested on → various parameters | 5 |
| valve → be put to → the test | 3 |
| valve → be in → test | 3 |
| negative | neutral | positive |
| 0.098 | 0.768 | 0.133 |
| Raw frequency | 118 |
| Normalized frequency | 0.552 |
| Modifier score | 0.984 |
| Perplexity | 357.871 |