| tightly | 6 | manner |
| well | 5 | degree |
| after filling with nitrogen | 4 | temporal |
| tube → be → sealed | 109 |
| tube → be sealed at → end | 10 |
| tube → be sealed at → one end | 7 |
| negative | neutral | positive |
| 0.136 | 0.773 | 0.092 |
| Raw frequency | 126 |
| Normalized frequency | 0.697 |
| Modifier score | 0.950 |
| Perplexity | 247.425 |