Imagine a question and stream-of-consciousness explanation for which this is the answer: no
Question: Premise: "A young boy with glasses feeds a geese some bread."
Hypothesis: "A girl is skipping down the sidewalk."
Do we know that the hypothesis entailed by the premise?
Stream-of-consciousness: The subject changes genders from a young boy to a girl. The subject can not be feeding geese and skipping at the same time.