Q: Premise: "A brown dog races on an obstacle course."
Based on this premise, can we conclude that the hypothesis "No animals racing." is true?
Options:
- yes
- it is not possible to tell
- no
A: If a dog is racing then it is impossible for no animals to be racing.
The answer is no.

Q: Premise: "A lot of bicyclists are ready for a race to begin."
Hypothesis: "There are a lot of bike slined up."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: A lot of bike slined up shows that bicyclists are ready for a race to begin.
The answer is yes.

Q: Can we conclude from "A large group of young girls standing with their teams at the starting line of a race." that "Girl at the starting line of a race at school."?
Options:
- yes
- no
- it is not possible to tell
A: Girls standing with their teams to start a race are not necessarily at school.
The answer is it is not possible to tell.

Q: Can we conclude from "A man speaking at a conference." that "The man is speaking."?
Options:
- yes
- no
- it is not possible to tell
A:
If someone is speaking at a conference then they must actually be speaking.
The answer is yes.