Premise: "A man in jeans and long-sleeve green sweatshirt playing golf with a blond toddler."\nHypothesis: "He is with his son."\nDo we know that the hypothesis entailed by the premise?
Stream of thoughts:
it is not possible to tell
A can be laying golf with a toddler but that don't make it his son.

.

So, the final answer is it is not possible to tell