| on the body | 23 | location |
| on the central nervous system | 15 | transitive-object |
| on different people | 12 | transitive-object |
| caffeine → have → effect | 102 |
| caffeine → have → what effect | 27 |
| caffeine → have → the effect | 22 |
| caffeine → have → this effect | 13 |
| caffeine → take → effect | 10 |
| caffeine → exert → its effects | 10 |
| caffeine → produce → effect | 4 |
| caffeine → have → affect | 3 |
| caffeine → have → physiological effects | 3 |
| caffeine → have → what kind of effect | 3 |
| caffeine → exert → effect | 3 |
| negative | neutral | positive |
| 0.272 | 0.602 | 0.125 |
| Raw frequency | 200 |
| Normalized frequency | 0.699 |
| Modifier score | 0.667 |
| Perplexity | 39.428 |