QUESTION: Can we conclude from "A dark-haired man wearing a backpack is walking down the street." that "A dark haired man walking in to the office."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: An office may down the street and can be walked into.
The answer is yes.


QUESTION: Test for natural language inference.
Premise: "People watching a lively concert under an orange tent."
Hypothesis: "Groupies scream out at their favorite artist."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: People watching a lively concert under an orange tent does not imply they are Groupies screaming out at their favorite artist.
The answer is it is not possible to tell.


QUESTION: Given the sentence "California running back is taking a hand off." is it true that "The running back is playing football."?

Let's solve it slowly:
Just because a running back is taking a hand off it doesn't mean he is playing football. He may be practicing his hand off skills with another player.
The answer is it is not possible to tell.