Three people in various stages of swimming strokes race along colorful lane markers.
The people are doing the back stroke.
If "Three people in various stages of swimming strokes race along colorful lane markers.", does it logically follow that "The people are doing the back stroke."?

Options: 

 - yes

 - it is not possible to tell

 - no
it is not possible to tell
If "Three people in various stages of swimming strokes race along colorful lane markers.", does it logically follow that "The people are doing the back stroke."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
it is not possible to tell
assistant