| Typicality: | 0.362 |
| Saliency: | 0.468 |
| to improve alertness | 8 | purpose |
| in low doses | 3 | temporal |
| caffeine → improve → mental performance | 27 |
| caffeine → improve → mental | 6 |
| caffeine → be shown to improve → mental | 5 |
| caffeine → improve → mental function | 5 |
| caffeine → improve → your mental functioning | 4 |
| caffeine → increase → mental performance | 3 |
| negative | neutral | positive |
| 0.031 | 0.171 | 0.798 |
| Raw frequency | 50 |
| Normalized frequency | 0.468 |
| Modifier score | 0.500 |
| Perplexity | 33.243 |