| in the late 1970s | 5 | temporal |
| in midwest | 3 | location |
| like automobiles | 2 | other |
| union → be → strongest | 21 |
| union → be → the strongest | 13 |
| union → be at → strongest | 10 |
| negative | neutral | positive |
| 0.144 | 0.425 | 0.431 |
| Raw frequency | 44 |
| Normalized frequency | 0.511 |
| Modifier score | 0.500 |
| Perplexity | 311.887 |