R & A: Smoke could be caused by something other than a significant fire.
it is not possible to tell
Q: Premise: "Smoke has filled the air and the buildings preventing the firefighter from entering the building."
Hypothesis: "There is a fire that is the cause of all the smoke."
Do we know that the hypothesis entailed by the premise?

R & A: Green traffic signals light up people. and as people look at motorcycles.
yes
Q: If "Green traffic signals light up as people look at motorcycles." does that mean that "Traffic signals light up by the people."?
Options:
- yes
- it is not possible to tell
- no

R & A: An old black police car and a newer police car are outside.
it is not possible to tell
Q: Premise: "An old police car."
Based on this premise, can we conclude that the hypothesis "A police motorcycle and a newer police car outside of the mobile command unit." is true?
Options:
- yes
- it is not possible to tell
- no

R & A: Being on snow when skiing is a sufficient condition for standing. Standing is required when skiing.
yes
Q:
Can we conclude from "The skier is on the snow." that "The skier is standing in snow."?
Options:
- yes
- no
- it is not possible to tell