| patron → HasPrerequisite → assistance | 0.66 | |
| patron → HasPrerequisite → additional assistance | 0.51 | |
| patron → HasPrerequisite → service | 0.37 | |
| patron → HasPrerequisite → password | 0.35 | |
| patron → HasPrerequisite → assisted access | 0.25 | |
| patron → HasPrerequisite → item | 0.15 |