QUESTION: If "A group of students and a teacher in a geography class." does that mean that "The students are learning about the location of africa."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Location of Africa need not be taught in a geography class alone.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man is sitting on his front step." can we conclude that "A man is sitting on his step."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: All that is omitted is the position of the step. A man is sitting on his front step implies a man is sitting on his step.
The answer is yes.

QUESTION: Premise: "Children dig through dirt."
Hypothesis: "Children change the dress to dirt."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
Children cannot both dig through the dirt while changing the dress to dirt.
The answer is no.