People watching president speak contradicts people watching a person skiing in sentence 1.
This justifies what answer for what question? Q & A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Test for natural language inference.
Premise: "People watch as a person skis down a mountain."
Hypothesis: "The people are watching the president speak."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
no