[QUESTION] Premise: "Individuals are building a house."
Based on this premise, can we conclude that the hypothesis "A construction crew is demolishing a house." is true?
Options:
- yes
- it is not possible to tell
- no
Individuals cannot be building a house and demolishing a house simultaneously.
The answer is no.

[QUESTION] If "Dirt biker on a professional riding course near an airport." does that mean that "Composed of dirt."?
Options:
- yes
- it is not possible to tell
- no
A man rides his dirt bike on a track by the airport.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "The lady in the blue shirt is riding a bike across a bridge." is it true that "The lady is riding a bike."?
In order for a lady to ride her bike across a bridge she must be riding her bike.
The answer is yes.

[QUESTION] If "A little boy chases ducks through the leaves." does that mean that "A girl runs after a squirrel."?
Options:
- yes
- it is not possible to tell
- no
A boy who chases ducks is not a girl who runs.
The answer is no.