Student asked: Given the sentence "The older woman is talking to the child." is it true that "They are not speaking."?
Teacher's response: Let's think. One who is talking cannot be said to be not speaking. The answer is no.

Student asked: Given the sentence "Man in jeans sweeping the dirty sidewalk." can we conclude that "A man is sweeping the sidewalk."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Sweeping the sidewalk and sweeping the dirty sidewalk are the same action. The answer is yes.

Student asked: Can we conclude from "Little boy and little girl having fun with sand on the beach." that "A brother and sister are playing in the sand."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Having fun with sand on the beach doesn't necessarily imply playing in the sand. The answer is it is not possible to tell.

Student asked: Given the sentence "A curling competitor lines up her next shot." can we conclude that "The curling competitor is about to win."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. The curling competitor can prepare for a shot without being about to win. The answer is it is not possible to tell.