[QUESTION] Premise: "Two men are competing in a fencing competition."
Hypothesis: "Two men are competing in the semi-finals of the annual fencing competition."
Do we know that the hypothesis entailed by the premise?
Fencing competitions can take place in many forms over many time periods; one cannot presume two fencers are necessarily competing in the semi-finals of the annual fencing competition.
The answer is it is not possible to tell.

Q: Premise: "A man in a yellow shirt about to cut a cake with people sitting beside him."
Hypothesis: "The man in the yellow shirt is having a birthday."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Not all man cutting a cake with people sitting beside him is having a birthday.
The answer is it is not possible to tell.

QUESTION: Given the sentence "The mother is helping her baby brush his teeth with his big boy green toothbrush." is it true that "The mother is tucking the baby in to bed."?

Let's solve it slowly: The mother can't tucking the baby into bed while brushing his teeth.
The answer is no.

[QUESTION] Premise: "A man wearing a hat is balancing a tray of food on his head."
Hypothesis: "Waiter balancing tray of food on his head."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
The man balancing a tray of food might not be a waiter.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A man standing between waterfalls."
Hypothesis: "A person was watching the world series on tv."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man cannot watch tv and stand by waterfalls at the same time.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "Five children sitting on a set of steps that are located outside."
Hypothesis: "Children sitting on steps outside."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Steps outside is another way of saying steps that are located outside.
The answer is yes.