[QUESTION] Premise: "A dog running with something in his mouth in the grass."
Hypothesis: "The dog is carrying a ball in its mouth back to its master."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Not all things held in the mouths of dogs are balls and not all dogs that carry thing are running towards their master.
The answer is it is not possible to tell.

[QUESTION] If "A man standing on a post with his arms outstretched and his shirt over his head." does that mean that "Tight shirts are hard to take off."?
Options:
- yes
- it is not possible to tell
- no
The shirt would not be over his head if it were hard to take off.
The answer is no.

[QUESTION] Given the sentence "Healthcare workers doing their job during an operation." can we conclude that "Healthcare workers doing what they were trained to do."?
Options:
- yes
- it is not possible to tell
- no
Workers doing their job means they are doing what they were trained to do.
The answer is yes.

[QUESTION] Given the sentence "The dog in a red collar runs in the grass." is it true that "A dog running in the grass."?
Dog runs in the grass is a rephrasing of dog running in the grass.
The answer is yes.