Premise: "A man in a red shirt and a man in a blue jacket discussing and pointing to a spot on a small potted tree."
Hypothesis: "Two men are pointing at a potential sign of infection on an old oak tree."
Do we know that the hypothesis entailed by the premise? Stream of thoughts:
The spot is not necessarily a potential sign of infection and the tree is not necessarily old or an oak tree.
Therefore, the answer is it is not possible to tell.