What was the question for this implicit rationale, and corresponding answer?
The ducks are is sight makes sense if the ducks eat in the foreground.
 The answer: yes
The question: Premise: "A man sits outside at a wooden table and reads a book while ducks eat in the foreground."
Hypothesis: "The man at the table is reading a book while ducks are is sight."
Do we know that the hypothesis entailed by the premise?