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You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

The Gulf of Mexico (Spanish: Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida border the Gulf on the north, which are often referred to as the ``Third Coast'', in comparison with the U.S. Atlantic and Pacific coasts.
Output:
is the gulf of mexico part of an ocean?