Q: Given the sentence "A white dog swims with a stick." is it true that "A white dog is chasing a stick into the lake."?
A: Not all white dog swimming with a stick is chasing a stick into the lake.
The answer is it is not possible to tell.

Q: Premise: "Two women riding the train."
Hypothesis: "Two women riding the train to work."
Do we know that the hypothesis entailed by the premise?
A: Two women riding the train does not mean they are riding to work.
The answer is it is not possible to tell.

Q: Premise: "A man who is wearing a maintenance vest is on a subway or train looking up at the closed doors."
Hypothesis: "A man who is wearing a vest is doing maintenance on a subway."
Do we know that the hypothesis entailed by the premise?
A: Wearing a maintenance vest on the subway does not mean the man is doing maintenance at that time. He could be a maintenance man on his way home from work or on his way to work or on his way anywhere.
The answer is it is not possible to tell.

Q: Premise: "A sleepy child barely hanging on to their father."
Hypothesis: "The child needs a nap."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:
A child may be sleepy for other reasons than he needs a nap.
The answer is it is not possible to tell.