| very | 10 | degree |
| against the entry of microorganisms | 9 | transitive-object |
| to a similar device | 8 | other |
| container → be → secure | 118 |
| container → be → more secure | 14 |
| container → remain → secure | 6 |
| container → be kept → secure | 5 |
| container → be designed → secure | 3 |
| container → be intended to be → secure | 3 |
| negative | neutral | positive |
| 0.054 | 0.430 | 0.516 |
| Raw frequency | 149 |
| Normalized frequency | 0.607 |
| Modifier score | 1.000 |
| Perplexity | 90.337 |