Student asked: Can we conclude from "One man helps another man start a back flip." that "Two men are sitting at a sewing machine."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A man who wants to start a back flip would not be sitting. The answer is no.


Student asked: Premise: "There are a group of people in a pool and they have scuba gear on."
Hypothesis: "People are learning how to scuba dive."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. The people in the pool may already be accomplished scuba divers and have no need of further learning. The answer is it is not possible to tell.


Student asked: Can we conclude from "Two men and two young women work on a blue bike." that "Four people butchering a cow."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Work on a blue bike and butchering a cow are two entirely different activities that cannot be simultaneously. The answer is no.


Student asked: Premise: "A man wearing a green shirt is taking a picture of something."
Hypothesis: "A man is taking a photo."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Sentence two follows sentence one because the man is taking a picture which is another word for photo. The answer is yes.