Student asked: Premise: "Two men are jumping in the air whilst crossing a wooden bridge."
Hypothesis: "Two men are jumping."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. Two men are in the air whilst jumping while crossing a wooden bridge. The answer is yes.


Student asked: Premise: "A tennis player wearing a black and white top and black pants strikes the tennis ball."
Based on this premise, can we conclude that the hypothesis "Tennis player returns a serve for a point." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not every strike of a tennis ball is a serve return. The answer is it is not possible to tell.


Student asked: Can we conclude from "The lead singer visited with his band members and had the guitarist sing along with the song." that "A band is on tour and playing a show every night."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The lead singer and his band members must not be on tour. The answer is it is not possible to tell.


Student asked: Premise: "Two children are in a sack race while a third child watches."
Hypothesis: "All three children are racing."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. In sentence one there are only two children racing. All three are racing in 2. The answer is no.