| by chemical treatment | 9 | cause |
| as the conflicts | 5 | other |
| by washing away the unexposed salt | 2 | manner |
| image → be → permanent | 30 |
| image → be made → permanent | 9 |
| image → make → permanent | 6 |
| image → become → permanent | 5 |
| negative | neutral | positive |
| 0.104 | 0.630 | 0.266 |
| Raw frequency | 50 |
| Normalized frequency | 0.400 |
| Modifier score | 0.000 |
| Perplexity | 282.991 |