[QUESTION] Premise: "A surfer dressed in black catches a huge wave and starts riding on the descent."
Hypothesis: "A man is waiting to get on the bus."
Do we know that the hypothesis entailed by the premise?
Catching a huge wave requires a surfboard and the person needs to be in the water which cannot happen when you are waiting for the bus.
The answer is no.

[QUESTION] Given the sentence "A man sitting making straw hats." is it true that "The man is making a hat for himself."?
Making a hat does not imply making a hat for himself.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "Two young men wearing camouflage stand in the grass."
Hypothesis: "Two guys are duck hunting."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
You don't have to be duck hunting to be wearing camouflage.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Some children are standing in a doorway." can we conclude that "Children are present."?
Options:
- yes
- it is not possible to tell
- no
If you could not see the children standing in the doorway they would not be present.
The answer is yes.