He may not be riding downhill it could be flat surface.
The question and answer are below.
Can we conclude from "The bicycle rider is wearing a yellow jacket and a blue helmet while riding on a road during winter time." that "A bicycle rider is riding downhill."?
Options:
- yes
- no
- it is not possible to tell
it is not possible to tell

It is possible there are more than one person on the escalator.
The question and answer are below.
Premise: "A person jumping off of an outdoor staircase."
Based on this premise, can we conclude that the hypothesis "Everyone is on an escalator." is true?
Options:
- yes
- it is not possible to tell
- no
no

Guys are men but one cannot throw litter and be sweeping at the same time.
The question and answer are below.
Premise: "Two men sweeping in a large building with decorated walls and pillars."
Based on this premise, can we conclude that the hypothesis "Two guys throw litter on the ground." is true?
Options:
- yes
- it is not possible to tell
- no
no