Premise: "A closeup shot of three guys and a girl posing for the camera."
Hypothesis: "Three guys and a girl posing for their birthday shot."
Do we know that the hypothesis entailed by the premise? A step-by-step solution is:
Just because a closeup shot of three guys and a girl posing for the camera does not mean that they for their birthday shot.
The final answer: it is not possible to tell.