QUESTION: Can we conclude from "An african girl smiles widely as she eats a big spoonful of grits." that "An african girl has a closed mouth."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: One can not be smiles as she eats with a closed mouth simultaneously.
The answer is no.


QUESTION: Can we conclude from "Two older women deep in conversation on the couch." that "The women are brawling on the floor."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: You cannot be on a couch and on the floor at the same time.
The answer is no.


QUESTION: Test for natural language inference.
Premise: "An older couple walk in the marketplace."
Hypothesis: "A couple is walking together."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
If a couple are Walking in a market it's usually together.
The answer is yes.