Leo: Premise: "A boy with an injured right arm and wearing blue shorts is lying on a bed with a towel."
Hypothesis: "The boy is lying on a queen sized bed."
Do we know that the hypothesis entailed by the premise?
Mei: OK, So, let's think first...
Me:
A boy with an injured right arm and wearing blue shorts is lying on a bed with a towe does not indicate that he is lying on a queen sized bed.
Thus, the answer is it is not possible to tell.