| Typicality: | 0.324 |
| Saliency: | 0.377 |
| to improve mood | 3 | purpose |
| for many tasks | 2 | purpose |
| caffeine → be shown to improve → alertness | 11 |
| caffeine → be shown to increase → alertness | 8 |
| caffeine → be proven to increase → alertness | 7 |
| caffeine → be proven to improve → alertness | 3 |
| negative | neutral | positive |
| 0.053 | 0.224 | 0.723 |
| Raw frequency | 29 |
| Normalized frequency | 0.377 |
| Modifier score | 0.500 |
| Perplexity | 10.993 |