Student asked: Premise: "A man and a young boy are wearing green pillowcases on their heads."
Hypothesis: "A man and his son are lying in bed."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. All men do not have a son. Just because the man and boy are wearing pillowcases doesn't mean they are lying in bed. The answer is it is not possible to tell.


Student asked: Given the sentence "Children at a riverbank stand near an umbrella." is it true that "A child stares at a poster of a riverbank."?
Teacher's response: Let's think. There are either multiple children or there is one child. The child is either at the riverbank or staring at a picture of one. The answer is no.


Student asked: If "A young man greeting his supporters before a big karate fight hosted in his town." does that mean that "A young man chats with folks before a fight."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. One way that a person chats with folks is by greeting his supporters. The answer is yes.


Student asked: Can we conclude from "Men on horses are standing on the shore looking at the lake." that "Horses crossing a river."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:

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
Let's think. Horses cannot be standing on the shore and crossing a river at the same time. The answer is no.