Student asked: If "A girl in a yellow dress is standing on the pavement outside a store." does that mean that "The girl in yellow is waiting for a bus."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not all girl in a yellow dress is standing on the pavement outside a store is waiting for a bus. The answer is it is not possible to tell.

Student asked: Test for natural language inference.
Premise: "A group of people getting ready for climbing a mountain."
Hypothesis: "A group of people are wearing backpacks."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Not all people getting ready for climbing a mountain are wearing backpacks. The answer is it is not possible to tell.

Student asked: Can we conclude from "People riding a miniature park train." that "People are riding a train."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The people are riding a train because they're doing so in a park. The answer is yes.

Student asked: Can we conclude from "Young boys stop skateboarding to look at statue and talk." that "Some teenage boys are outside on a sunny day."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. Look at statue and talk does not necessarily mean outside on a sunny day. The answer is it is not possible to tell.