[QUESTION] Premise: "Man using powerpoint while giving a lecture."
Hypothesis: "The man is listening to a powerpoint lecture."
Do we know that the hypothesis entailed by the premise?
If he is giving the lecture he is not listening to the lecture.
The answer is no.

Q: Given the sentence "Pops and the girls taking 40 winks." can we conclude that "A group of females."?
Options:
- yes
- it is not possible to tell
- no
A: Pops and the girls means there is a group of females with Pops.
The answer is yes.

QUESTION: Given the sentence "A smiling man in a blue shirt and straw hat is standing inside a brick structure." is it true that "The man is in shelter."?

Let's solve it slowly: The shelter the man is standing in is a brick structure. Perhaps he is smiling because he is safe inside the shelter of the brick structure.
The answer is yes.

[QUESTION] Premise: "A man is using a grinder on a locker's lock."
Hypothesis: "A man uses a grinder to hurt people inside a locker."
Do we know that the hypothesis entailed by the premise?
Either one uses a grinder on a locker's or to hurt people inside the locker.
The answer is no.

Q: Premise: "Two medium size dogs smiff each others behinds."
Hypothesis: "Two dogs about to get into a fight."
Do we know that the hypothesis entailed by the premise?
A: Just because dogs sniff each other does not mean they are about to get into a fight.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man has his arms around two women who are posing for a picture with him."
Hypothesis: "A man and two women are sitting on a bus."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
They cannot be posing for a picture and sitting on a bus.
The answer is no.