[QUESTION] Can we conclude from "Martial arts students sit on the floor or stand in the background while watching a matchup between two people." that "Karate students are watching two classmates in a match."?
Options:
- yes
- no
- it is not possible to tell
Martial arts can be things other than karate. The two people are not necessarily classmates.
The answer is it is not possible to tell.

Q: Given the sentence "The man in the red shirt is carrying a black bag through the city streets." can we conclude that "The man is robbed a bank."?
Options:
- yes
- it is not possible to tell
- no
A: He can't be on the streets and robbing a bank at the same time.
The answer is no.

QUESTION: Given the sentence "A man is eating something and walking down a sidewalk past a big red and yellow sign." can we conclude that "The man is eating and walking becase he's hungry."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not all man eating something and walking down a sidewalk past a big red and yellow sign is becase he's hungry.
The answer is it is not possible to tell.

[QUESTION] Premise: "Three workmen wearing safety hats stand in front of a tractor designed for hauling a large tunnel tube."
Based on this premise, can we conclude that the hypothesis "The men are letting their hair flow free." is true?
Options:
- yes
- it is not possible to tell
- no
Three workmen wearing safety hats cannot let their hair flow free.
The answer is no.

Q: Premise: "A skateboarder has kicked his board up onto its back wheels in an indoor skate center."
Hypothesis: "A skater is in a contest."
Do we know that the hypothesis entailed by the premise?
A: Not all indoor skateboarding has to be part of a contest.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "Two youths walk down an inclined street." that "There are no cars on the street."?
Options:
- yes
- no
- it is not possible to tell
You cannot tell how many cars are on the street from sentence 1.
The answer is it is not possible to tell.