a skateboarder grinds a rail.
A biker is grinding a rail.
Is the premise "a skateboarder grinds a rail." true if "A biker is grinding a rail."?

Options: 

 - yes

 - it is not possible to tell

 - no
no
Is the premise "a skateboarder grinds a rail." true if "A biker is grinding a rail."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
no
assistant