Q: Can we conclude from "A group of people gather and some are wearing white masks over their mouths." that "There are several people in a group."?
Options:
- yes
- no
- it is not possible to tell
A: Group of people and several people in a group are equivalent as part of the whole description while gathering.
The answer is yes.

QUESTION: If "A woman with purple hair is playing with a hula hoop." does that mean that "A woman with green hair is playing jump rope."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Purple is not same color of green and hula hoop is not jump rope.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A dark clad person stands on the side of a bicycle while it is off the ground with a large tower in the background."
Hypothesis: "A man starts putting graffiti on a tower."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
You can't put graffiti on a tower if it is in the background.
The answer is no.

Q: Given the sentence "A group of girls reading some lines." is it true that "The group of girls were rehearsing."?
A: The girls reading lines does not necessarily mean they are rehearsing.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Two people fencing at the 2012 london olympics." can we conclude that "Two rivals having their final match at the olympics."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not all pairs of fencers at the Olympics are rivals. Not all fencing matches at the Olympics are the final match.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A young woman stoops to feed a small dog on a brick-paved street." can we conclude that "A young woman feeds a homeless dog."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
A dog on the street does not imply that it is homeless.
The answer is it is not possible to tell.