Premise: "Four construction workers are working at night in the city by the water."
Hypothesis: "There are two men and two women in the photo."
Do we know that the hypothesis entailed by the premise? Let's be accurate as possible and think first.
Four workers doesn't imply two men and two women. The fact that four construction workers are working at night in the city by the water doesn't imply that they are all in a photo. Final answer: it is not possible to tell.