Student asked: Given the sentence "A young boy is watching the view from a tall building." is it true that "A young boy is on the top of a tall building."?
Teacher's response: Let's think. Watching from a tall building does not imply that the boy is on the top of it. The answer is it is not possible to tell.


Student asked: Can we conclude from "A man and a woman wearing helmets and sunglasses are sitting outside in a park." that "A man and woman sitting in the park."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Sentence 2 can be inferred from sentence one about the park. The answer is it is not possible to tell.


Student asked: Test for natural language inference.
Premise: "A tattooed man dress in black with an orange hat sings and plays the guitar."
Hypothesis: "A man performs music on a street corner."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A tattooed man dress in black with an orange hat sings and plays the guitar does not indicate that he performs music on a street corner. The answer is it is not possible to tell.


Student asked: Given the sentence "A mean looking dog is in the snow and showing his teeth." is it true that "A friendly dog is rolling around in the snow."?
Teacher's response:
Let's think. A mean dog can not be a friendly dog at the same time. The answer is no.