hasMandatoryChallengerSystem
P104359
predicate
Indicates that an entity is required to implement or participate in a challenger system, where challenges must be accepted or processed according to defined rules.
Sample triples (4)
| Subject | Object |
|---|---|
| WBC lightweight title | true ⓘ |
| WBO heavyweight title | true ⓘ |
| WBC middleweight title | true ⓘ |
| IBF bantamweight title | true ⓘ |