Q: Are all limbs required for jujutsu?
A: no
CoT: Jujutsu is a Japanese martial art that uses unarmed combat to subdue opponents. Nick Newell, a congenital amputee, got his black belt after two straight submission wins. Fighter Aaron LaPointe has succeeded in martial arts with a fully paralyzed arm.

Q: Did Van Gogh suffer from a mental disorder?
A: yes
CoT: Mental disorders can be characterized by psychotic episodes and delusions. Van Gogh suffered from psychotic episodes and delusions.

Q: Can you only see hippopotamus in Africa?
A: no
CoT:
The United States has several zoos featuring hippopotamus. In the UK, you can see hippopotamus at the Marwell Zoo.