| to many advanced argumentation systems | 8 | other |
| to the pakistani predicament | 8 | other |
| in the indoor positioning problem | 6 | other |
| problem → be → central | 59 |
| problem → be → central issue | 5 |
| problem → become → central | 4 |
| negative | neutral | positive |
| 0.309 | 0.563 | 0.128 |
| Raw frequency | 68 |
| Normalized frequency | 0.368 |
| Modifier score | 0.700 |
| Perplexity | 242.978 |