| in case of power failure | 3 | purpose |
| with higher capacity | 2 | other |
| back-up | 2 | other |
| model → have → battery | 18 |
| model → come with → battery | 15 |
| model → include → battery | 5 |
| model → bring → battery | 3 |
| model → have → built-in battery | 3 |
| negative | neutral | positive |
| 0.069 | 0.548 | 0.383 |
| Raw frequency | 44 |
| Normalized frequency | 0.379 |
| Modifier score | 0.640 |
| Perplexity | 344.054 |