I'll give you a question, please answer with step-by-step reasoning process.
Premise: "Two young women are smiling while they sit at a table and eat."\nHypothesis: "Two young women smile at a joke."\nIs the hypothesis entailed by the premise?\nOptions:\n- yes\n- it is not possible to tell\n- no

it is not possible to tell
They could be smiling in friendship instead of smiling at a joke.

.

The answer: it is not possible to tell