| out of copper tubing | 4 | other |
| easily | 3 | manner |
| in the boiler | 2 | location |
| boiler → be → made | 42 |
| boiler → be → prepared | 4 |
| boiler → be → produced | 3 |
| negative | neutral | positive |
| 0.093 | 0.560 | 0.347 |
| Raw frequency | 49 |
| Normalized frequency | 0.572 |
| Modifier score | 0.900 |
| Perplexity | 363.233 |