| totally | 2 | degree |
| by using a sound insulated housing | 2 | manner |
| generator → be → enclosed | 6 |
| generator → be located in → enclosed space | 3 |
| generator → be within → enclosure | 3 |
| negative | neutral | positive |
| 0.164 | 0.728 | 0.108 |
| Raw frequency | 12 |
| Normalized frequency | 0.319 |
| Modifier score | 0.500 |
| Perplexity | 489.756 |