| to the human eye | 21 | transitive-object |
| sometimes | 19 | temporal |
| on different substrates | 15 | location |
| mold → be → visible | 266 |
| mold → be → apparent | 13 |
| mold → be → evident | 11 |
| mold → be → noticeable | 11 |
| negative | neutral | positive |
| 0.456 | 0.490 | 0.054 |
| Raw frequency | 301 |
| Normalized frequency | 0.755 |
| Modifier score | 0.566 |
| Perplexity | 252.712 |