Context: Charleston is the oldest and second-largest city in the U.S. state of South Carolina, the county seat of Charleston County, and the principal city in the Charleston–North Charleston–Summerville Metropolitan Statistical Area. The city lies just south of the geographical midpoint of South Carolina's coastline and is located on Charleston Harbor, an inlet of the Atlantic Ocean formed by the confluence of the Ashley and Cooper Rivers, or, as is locally expressed, "where the Cooper and Ashley Rivers come together to form the Atlantic Ocean."

Question: What is the oldest city in South Carolina?
Answer: Charleston

Question: What county is Charleston, South Carolina located in?
Answer: Charleston County

Question: Charleston is located on what harbor?
Answer: Charleston Harbor

Question: Charleston Harbor is an inlet of what ocean?
Answer: Atlantic Ocean

Question: What river mergers with the Cooper River to form Charleston Harbor?
Answer: Ashley Rivers

Question: What county is Charleston located in?
Answer: Charleston County

Question: Charleston Harbor is formed on what ocean?
Answer: Atlantic Ocean

Question: What river merges with the Ashley River to from the Charleston Harbor?
Answer: Cooper Rivers

Question: What is the newest city in South Carolina?
Answer: Unanswerable

Question: What county is Charleston, North Carolina located in?
Answer: Unanswerable

Question: Charleston isn't located on what harbor?
Answer: Unanswerable

Question: Charleston Harbor is an outlet of what ocean?
Answer: Unanswerable

Question: What river mergers with the Cooper River to form Charleston Bay?
Answer: Unanswerable