[Q] Premise: "Line of people outside a traveling facility."
Hypothesis: "A line of people are planning vacations for spring break."
Do we know that the hypothesis entailed by the premise?
[A] Line of people outside a traveling facility does not mean that they are planning vacations for spring break.
The answer is it is not possible to tell.

[Q] Premise: "A man is building a wooden straight-backed chair."
Hypothesis: "A man is destroying a wooden chair."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] Building and destroying a chair cannot be done at the same time.
The answer is no.

[Q] Given the sentence "A bike rider sits and watches as a fellow rider does a jump off a ramp." is it true that "Nobody is sitting."?
[A] You cannot have someone sitting and not sitting at the same time.
The answer is no.