Not all boys holding a ball are playing football. Just because the man is older, does not imply he is their grandpa.  Just because the older man smiles, does not necessarily means he happily watches.


Context: "A boy holding a ball falls down in front of another boy who has his arms reaching out while an older man in a green shirt smiles and watches."
Hypothesis: Two boys play football while their grandpa happily watches.
Based on the context, is the hypothesis true, false, or unknown?