Question: Williamsburg, Main Street station and another station share a track in a state bounded by an ocean. Where does that ocean meet the Gulf of Mexico?

Knowledge 1: Richmond, Virginia
The Richmond area also has two railroad stations served by Amtrak. Each station receives regular service from north of Richmond including Washington, D.C., Philadelphia, and New York. The suburban Staples Mill Road Station is located on a major north-south freight line and receives all service to and from all points south including, Raleigh, Durham, Savannah, Newport News, Williamsburg and Florida. Richmond's only railway station located within the city limits, the historic Main Street Station, was renovated in 2004. As of 2010, the station only receives trains headed to and from Newport News and Williamsburg due to track layout. As a result, the Staples Mill Road station receives more trains and serves more passengers overall. [SEP] Knowledge 2: Finsbury Park station
The interchange consists of a National Rail station, a London Underground station and two bus stations, all interconnected. The main entrances are by the eastern bus station on Station Place. The National Rail ticket office here lies in between one entrance marked by the Underground roundel symbol, while the other is marked by the National Rail symbol, and provides direct access to the main line platforms. There is another exit by the western bus station along Wells Terrace, incorporating the Underground ticket office, plus a narrow side entrance to the south on the A503 Seven Sisters Road. The complex is located in Travelcard Zone 2. [SEP] Knowledge 3: Gulf of Mexico
The Gulf of Mexico formed approximately 300 million years ago as a result of plate tectonics. The Gulf's basin is roughly oval and is approximately 810 nautical miles (1,500 km; 930 mi) wide and floored by sedimentary rocks and recent sediments. It is connected to part of the Atlantic Ocean through the Florida Straits between the U.S. and Cuba, and with the Caribbean (with which it forms the American Mediterranean Sea) via the Yucatán Channel between Mexico and Cuba. With the narrow connection to the Atlantic, the Gulf experiences very small tidal ranges. The size of the Gulf basin is approximately 1.6 million km (615,000 sq mi). Almost half of the basin is shallow continental shelf waters. The basin contains a volume of roughly 2,500 quadrillion liters (550 quadrillion Imperial gallons, 660 quadrillion US gallons, 2.5 million km or 600,000 cu mi). [SEP] Knowledge 4: Virginia
Virginia has a total area of , including of water, making it the 35th-largest state by area. Virginia is bordered by Maryland and Washington, D.C. to the north and east; by the Atlantic Ocean to the east; by North Carolina to the south; by Tennessee to the southwest; by Kentucky to the west; and by West Virginia to the north and west. Virginia's boundary with Maryland and Washington, D.C. extends to the low-water mark of the south shore of the Potomac River. The southern border is defined as the 36° 30′ parallel north, though surveyor error led to deviations of as much as three arcminutes. The border with Tennessee was not settled until 1893, when their dispute was brought to the U.S. Supreme Court.
Knowledge 1: Richmond, Virginia
The Richmond area also has two railroad stations served by Amtrak. Each station receives regular service from north of Richmond including Washington, D.C., Philadelphia, and New York. The suburban Staples Mill Road Station is located on a major north-south freight line and receives all service to and from all points south including, Raleigh, Durham, Savannah, Newport News, Williamsburg and Florida. Richmond's only railway station located within the city limits, the historic Main Street Station, was renovated in 2004. As of 2010, the station only receives trains headed to and from Newport News and Williamsburg due to track layout. As a result, the Staples Mill Road station receives more trains and serves more passengers overall. [SEP] Knowledge 2: Finsbury Park station
The interchange consists of a National Rail station, a London Underground station and two bus stations, all interconnected. The main entrances are by the eastern bus station on Station Place. The National Rail ticket office here lies in between one entrance marked by the Underground roundel symbol, while the other is marked by the National Rail symbol, and provides direct access to the main line platforms. There is another exit by the western bus station along Wells Terrace, incorporating the Underground ticket office, plus a narrow side entrance to the south on the A503 Seven Sisters Road. The complex is located in Travelcard Zone 2. [SEP] Knowledge 3: Gulf of Mexico
The Gulf of Mexico formed approximately 300 million years ago as a result of plate tectonics. The Gulf's basin is roughly oval and is approximately 810 nautical miles (1,500 km; 930 mi) wide and floored by sedimentary rocks and recent sediments. It is connected to part of the Atlantic Ocean through the Florida Straits between the U.S. and Cuba, and with the Caribbean (with which it forms the American Mediterranean Sea) via the Yucatán Channel between Mexico and Cuba. With the narrow connection to the Atlantic, the Gulf experiences very small tidal ranges. The size of the Gulf basin is approximately 1.6 million km (615,000 sq mi). Almost half of the basin is shallow continental shelf waters. The basin contains a volume of roughly 2,500 quadrillion liters (550 quadrillion Imperial gallons, 660 quadrillion US gallons, 2.5 million km or 600,000 cu mi). [SEP] Knowledge 4: Newport News, Virginia
Newport News is included in the Hampton Roads metropolitan area. It is at the southeastern end of the Virginia Peninsula, on the northern shore of the James River extending southeast from Skiffe's Creek along many miles of waterfront to the river's mouth at Newport News Point on the harbor of Hampton Roads. The area now known as Newport News was once a part of Warwick County. Warwick County was one of the eight original shires of Virginia, formed by the House of Burgesses in the British Colony of Virginia by order of King Charles I in 1634. The county was largely composed of farms and undeveloped land until almost 250 years later.
Knowledge 1: Richmond, Virginia
The Richmond area also has two railroad stations served by Amtrak. Each station receives regular service from north of Richmond including Washington, D.C., Philadelphia, and New York. The suburban Staples Mill Road Station is located on a major north-south freight line and receives all service to and from all points south including, Raleigh, Durham, Savannah, Newport News, Williamsburg and Florida. Richmond's only railway station located within the city limits, the historic Main Street Station, was renovated in 2004. As of 2010, the station only receives trains headed to and from Newport News and Williamsburg due to track layout. As a result, the Staples Mill Road station receives more trains and serves more passengers overall. [SEP] Knowledge 2: Finsbury Park station
The interchange consists of a National Rail station, a London Underground station and two bus stations, all interconnected. The main entrances are by the eastern bus station on Station Place. The National Rail ticket office here lies in between one entrance marked by the Underground roundel symbol, while the other is marked by the National Rail symbol, and provides direct access to the main line platforms. There is another exit by the western bus station along Wells Terrace, incorporating the Underground ticket office, plus a narrow side entrance to the south on the A503 Seven Sisters Road. The complex is located in Travelcard Zone 2. [SEP] Knowledge 3: Newport News, Virginia
Newport News is included in the Hampton Roads metropolitan area. It is at the southeastern end of the Virginia Peninsula, on the northern shore of the James River extending southeast from Skiffe's Creek along many miles of waterfront to the river's mouth at Newport News Point on the harbor of Hampton Roads. The area now known as Newport News was once a part of Warwick County. Warwick County was one of the eight original shires of Virginia, formed by the House of Burgesses in the British Colony of Virginia by order of King Charles I in 1634. The county was largely composed of farms and undeveloped land until almost 250 years later. [SEP] Knowledge 4: Virginia
Virginia has a total area of , including of water, making it the 35th-largest state by area. Virginia is bordered by Maryland and Washington, D.C. to the north and east; by the Atlantic Ocean to the east; by North Carolina to the south; by Tennessee to the southwest; by Kentucky to the west; and by West Virginia to the north and west. Virginia's boundary with Maryland and Washington, D.C. extends to the low-water mark of the south shore of the Potomac River. The southern border is defined as the 36° 30′ parallel north, though surveyor error led to deviations of as much as three arcminutes. The border with Tennessee was not settled until 1893, when their dispute was brought to the U.S. Supreme Court.

Answer: Florida Straits