Use reasoning to lead to the answer of the following question:
Premise: "A man wearing sunglasses and a gray t-shirt is sitting in a chair."\nHypothesis: "A man is wearing a gray shirt."\nDo we know that the hypothesis entailed by the premise?

yes
We know a man is wearing a gray shirt because it's stated that a man is wearing sunglasses and a gray t-shirt.

.

Thus, the answer is yes