| due to their contact free operation | 9 | cause |
| no longer | 4 | temporal |
| for any industrial application | 4 | purpose |
| contact → be → relevant | 28 |
| contact → be → appropriate | 22 |
| contact → be → suitable | 7 |
| negative | neutral | positive |
| 0.064 | 0.658 | 0.277 |
| Raw frequency | 57 |
| Normalized frequency | 0.526 |
| Modifier score | 1.000 |
| Perplexity | 122.319 |