QUESTION: Given the sentence "A man stands inside of a small plane." is it true that "A man stands in a plane."?

Let's solve it slowly: A small plane is a plane of small size. Inside and in are synonyms.
The answer is yes.

QUESTION: Premise: "People are walking down an alley."
Hypothesis: "The people are walking to their house."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The people can be walking to the store down the alley.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man is sitting down on the ground sifting through dirt using a bucket."
Hypothesis: "A man is holding a bucket."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
A man is holding a bucket in order to better sift the dirt.
The answer is yes.