| very | 11 | degree |
| in memory retention | 11 | purpose |
| as a treatment | 10 | manner |
| caffeine → be → useful | 75 |
| caffeine → prove → useful | 5 |
| caffeine → be → valuable | 3 |
| caffeine → be → asset | 3 |
| negative | neutral | positive |
| 0.044 | 0.265 | 0.691 |
| Raw frequency | 86 |
| Normalized frequency | 0.558 |
| Modifier score | 0.500 |
| Perplexity | 79.046 |