Student asked: Premise: "A little boy in a toy fireman's helmet playing outside with a saw."
Hypothesis: "A little boy drives a firetruck around the house."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. A boy playing with a saw is unlikely to be driving a firetruck at the same time. A boy driving around the house must be inside and not playing outside. The answer is no.


Student asked: Premise: "People riding escalator in a shopping mall."
Hypothesis: "Shoppers taking an escalator rather than the stairs."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Riding an escalator does not imply that it is instead of the stairs. The answer is it is not possible to tell.


Student asked: Premise: "A man holding a sign with people walking around in the background."
Hypothesis: "The sign tells people about the end of the world that is coming soon."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not every sign tells people about the end of the world. The answer is it is not possible to tell.


Student asked: Premise: "A group of men walk and hang onto ropes."
Based on this premise, can we conclude that the hypothesis "One man and one woman play tug of war with a rope." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Subject could be group of men or one man and one woman. The answer is no.