Premise: "A man on a thatched-roof boat with an oar in the back is busy as the boat sits on bluish-green water."
Hypothesis: "The man is busy fishing."
Do we know that the hypothesis entailed by the premise? Now, let's be accurate as possible. Some thinking first:
Not all men on a thatched-roof boat with an oar are necessarily be doing fishing. So, the answer is it is not possible to tell.