| to visibility | 2 | purpose |
| on them | 2 | location |
| pipe → have → valve | 11 |
| pipe → be connected to → valve | 5 |
| pipe → be controlled by → valve | 4 |
| pipe → be accessed through → valve | 3 |
| pipe → be inserted into → valve | 3 |
| negative | neutral | positive |
| 0.101 | 0.764 | 0.135 |
| Raw frequency | 26 |
| Normalized frequency | 0.390 |
| Modifier score | 0.900 |
| Perplexity | 169.173 |