| in power output | 6 | other |
| for vitamin a | 4 | other |
| vitamin d → lead to → increase | 4 |
| vitamin d → increase → the need | 4 |
| vitamin d → need → increase | 4 |
| negative | neutral | positive |
| 0.284 | 0.411 | 0.305 |
| Raw frequency | 12 |
| Normalized frequency | 0.212 |
| Modifier score | 0.500 |
| Perplexity | 45.278 |