Q: Given the sentence "A man at the subway station waiting for a train." is it true that "A man waiting for a train."?
A: The man is waiting because he is at the subway station waiting.
The answer is yes.

QUESTION: Can we conclude from "People taking a walk on a path in a shopping center." that "Dogs are running on a path in a mall."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: People and dogs are of different species. Walking and running have different paces while moving.
The answer is no.

[QUESTION] Can we conclude from "Three women stand together in a room and smile." that "Three friends remember fond times."?
Options:
- yes
- no
- it is not possible to tell
Not all women are friends and smiling does not necessarily indicate remembering fond times.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "This is a crowded street with some trucks in the middle."
Hypothesis: "Trucks will race."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Trucks in the middle of a street does not mean that they will race.
The answer is it is not possible to tell.

QUESTION: Given the sentence "The big white dog is running in the grass." can we conclude that "A big white dog is chasing a rodent through the grass."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Dog running in the grass is not always chasing a rodent.
The answer is it is not possible to tell.

QUESTION: Premise: "A teenage boy in a white shirt is speaking to a group of teenagers who are sitting at picnic tables in front of a park."
Hypothesis: "The boy is communicating with others."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
A boy is speaking to a group of people that are sitting down.
The answer is yes.