| always | 2 | degree |
| in networks with mobile stations | 2 | location |
| problem → be related to → quality | 34 |
| problem → be → quality | 34 |
| problem → be associated with → quality | 14 |
| problem → relate to → quality | 12 |
| problem → regard → quality | 6 |
| problem → concern → quality | 6 |
| problem → involve → quality | 5 |
| problem → be → quality problems | 3 |
| negative | neutral | positive |
| 0.493 | 0.386 | 0.122 |
| Raw frequency | 114 |
| Normalized frequency | 0.429 |
| Modifier score | 0.800 |
| Perplexity | 74.505 |