Student asked: Premise: "A group of men securing a concert."
Hypothesis: "The group of men are singing at the concert."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The men can be either securing a concert or singing at the concert. The answer is no.

Student asked: Can we conclude from "Woman walking behind two mail carrier drops in the grass." that "A woman drops in the grass behind a couple mail carriers."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A woman who drops in the grass behind two mail carrier does just that. The answer is yes.

Student asked: Can we conclude from "A lady with a black hat holds a little girl with a crown of flowers." that "A lady wearing a black top hat is holding a little girl."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The lady with a black hat is not implied to have a black top. The answer is it is not possible to tell.

Student asked: Given the sentence "A group of go-cart riders are racing around a go-cart track." is it true that "A group of old ladies racing in go-carts."?
Teacher's response:
Let's think. A group can be composed in any manner and not necessarily only of old ladies. The answer is it is not possible to tell.