Premise: "A smiling woman and a child sitting down and having dinner."
Hypothesis: "A mom and child are enjoying dinner at a fancy restaurant."
Do we know that the hypothesis entailed by the premise?
Let's solve step-by-step:
A woman and child are having dinner but that doesn't mean the woman is a mom. The woman and child aren't necessarily enjoying dinner and they aren't necessarily at a fancy restaurant. The answer is it is not possible to tell.