Random triples
| Subject | Object |
|---|---|
| gptkb:Superbike_World_Championship | not mandatory |
| gptkb:24h_Nürburgring | required |
| gptkb:RallyCross | not typical |
| gptkb:F1_Grand_Prix | allowed |
| gptkb:Touring_Car_Racing | allowed in endurance races |
| gptkb:24_Hours_Nürburgring | required |