| by the submarine's crew | 2 | other |
| by incorporating certain architectural elements | 2 | manner |
| smoke → be → contained | 9 |
| smoke → be → controlled | 5 |
| smoke → be brought under → control | 3 |
| negative | neutral | positive |
| 0.260 | 0.612 | 0.128 |
| Raw frequency | 17 |
| Normalized frequency | 0.317 |
| Modifier score | 0.500 |
| Perplexity | 353.570 |