Student asked: Premise: "Some people in an outdoor market."
Hypothesis: "Someone is buying fruit."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. It does not specify anything about fruit being sold at the market. The answer is it is not possible to tell.


Student asked: Premise: "Middle eastern street vendor checking the cooked food on his cart."
Based on this premise, can we conclude that the hypothesis "Middle eastern vendor is standing near a food cart." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The vendor that is standing near a food cart is checking the cooked food. The answer is yes.


Student asked: Premise: "Very old man hard at work."
Hypothesis: "The man is angry."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. Being very old does not imply that the man is angry. The answer is it is not possible to tell.


Student asked: Premise: "A young man is surfing on the crest of a wave."
Based on this premise, can we conclude that the hypothesis "The young man is on the water." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. One must be on the water to be surfing on the crest of a wave. The answer is yes.