If you wish to establish an owning relationship with an individual and person category and they are already owned by another organization are you able to establish an additional owning relationship?

No, you cannot establish an additional owning relationship with an individual or person category if they are already owned by another organization. Ownership typically implies exclusive rights, and attempting to create another relationship would conflict with the existing one. It's important to respect the established ownership agreements and seek alternative ways to collaborate or engage without infringing on those rights.