[QUESTION] If "A red airplane that has left behind a trail." does that mean that "An ariplane is going at mach 5 speeds."?
Options:
- yes
- it is not possible to tell
- no
Just because the airplane has left behind a trail doesn't indicate that it is traveling at mach 5 speed.
The answer is it is not possible to tell.

Q: If "The little boy rides his bicycle in a race." does that mean that "The boy is riding his bike."?
Options:
- yes
- it is not possible to tell
- no
A: A boy is little and you ride your bike in a race.
The answer is yes.

QUESTION: Premise: "An homeless man is rubbing his hands together trying to keep warm."
Hypothesis: "A homeless man rubbing his hands together for warmth on a cold snowy day outside."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The day could have been something other than cold and snowy. The homeless man could have been outside or inside.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "Two friends catch up over a couple of drinks."
Hypothesis: "Two friends catch up over a mexican meal."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The friends either catch up over a Mexican meal or drinks.
The answer is no.

Q: Given the sentence "A waiter taking an order at a restaurant." is it true that "A waiter is taking an order for a hamburger at a restaurant."?
A: Taking an order does not imply the order is for a hamburger.
The answer is it is not possible to tell.

[QUESTION] Premise: "Man with gray hair and a white shirt kneels amid bikes."
Based on this premise, can we conclude that the hypothesis "The man is a bicycle mechanic." is true?
Options:
- yes
- it is not possible to tell
- no
A man kneels amid bikes doesn't necessarily imply he is a bicycle mechanic.
The answer is it is not possible to tell.