| generator → HasPrerequisite → maintenance | 0.66 | |
| generator → HasPrerequisite → periodic oil and filter changes | 0.50 | |
| generator → HasPrerequisite → oil changes | 0.45 | |
| generator → HasPrerequisite → automatic transfer switch | 0.38 | |
| generator → HasPrerequisite → ppa | 0.28 |