Premise: "A man in a white shirt and black bag stands by a tree with a group of others mostly dressed in black."\nHypothesis: "A man is sitting down in a chair next to a group of people dressed in white."\nDo we know that the hypothesis entailed by the premise?
Let's think step by step below.
no
Person that stands can not be sitting down in a chair.

.

Final answer: no