Leo: Premise: "Several teenagers are looking over a railing in a dark room."
Hypothesis: "The teens in the brightly lit room are looking at the whiteboard at the front of the room."
Do we know that the hypothesis entailed by the premise?
Mei: OK, So, let's think first...
Me:
A dark room is not lit so it could not also be brightly lit.
Thus, the answer is no.