Student asked: Premise: "A janitor stands on a moving walkway whilst cleaning in an airport."
Hypothesis: "A janitor is cleaning the front area of the airport."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. The front area of an airport does not always necessarily have to have a moving walkway. And moving walkways do not have to be placed in the front area of the airport. They can be put anywhere in the airport. Or the airport can just not have them. The answer is it is not possible to tell.

Student asked: Premise: "A baby and 2 year old laying on the ground under a play mobile."
Hypothesis: "Two siblings play with a mobile toy."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A baby and 2 year old laying on the ground under a play mobile does not imply they are siblings. The answer is it is not possible to tell.

Student asked: Premise: "A skier flies through the air in front of a mountainous landscape."
Hypothesis: "The skier is in the snow."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A skier flies through the air in front of a mountainous landscape means the skier should be in the snow as mountainous landscape entails snow. The answer is yes.

Student asked: Given the sentence "A bmx rider launches off a quarterpipe." is it true that "The bmx rider launches off the quarterpipe for the fourth time."?
Teacher's response:
Let's think. It does not have to be the fourth time the bmx rider launches off. The answer is it is not possible to tell.