Please answer the following question by reasoning step-by-step. Test for natural language inference.
Premise: "A black dog approaches the camera with his hind legs raised and his ears forward."
Hypothesis: "The dog is playful."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell. Step-by-step reasoning:
A dog with hind legs raised may be distressed rather than playful. So the answer is it is not possible to tell.