Student asked: Premise: "A young man presents an unknown object to photographer."
Hypothesis: "A photographer tries to identify an unknown object."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The photographer might not want to try to identify the object. The answer is it is not possible to tell.

Student asked: Given the sentence "A young girl and young boy are climbing on a geometric structure." can we conclude that "The boy and girl are angels."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. They are either climbing on a structure or they are angels. The answer is no.

Student asked: Premise: "Two women wave flags in a tunnel."
Based on this premise, can we conclude that the hypothesis "The women hold the flags in the tunnel were part of a roadwork crew." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not all woman who wave flags in a tunnel are necessarily part of a roadwork crew. The answer is it is not possible to tell.

Student asked: Given the sentence "Lifeguards gather at the beach patrol station." can we conclude that "Lifeguards are off duty at the club."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Lifeguards off duty at club contradicts with lifeguards gathering at Beach Patrol Station. The answer is no.