The dog has a blue ball in its mouth.
Nothing has a ball.
Is the premise "The dog has a blue ball in its mouth." true if "Nothing has a ball."?

Options: 

 - yes

 - it is not possible to tell

 - no
no
Is the premise "The dog has a blue ball in its mouth." true if "Nothing has a ball."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
no
assistant