| very | 16 | degree |
| during the early 1900s | 7 | temporal |
| with collectors | 5 | other |
| postcard → be → popular | 26 |
| postcard → become → popular | 17 |
| postcard → prove → popular | 3 |
| negative | neutral | positive |
| 0.024 | 0.237 | 0.740 |
| Raw frequency | 46 |
| Normalized frequency | 0.653 |
| Modifier score | 1.000 |
| Perplexity | 178.403 |