Task: Explanation
Input (English): The John Mercer Langston House is a National Historic Landmark in Oberlin, Ohio. It was home to John Mercer Langston, attorney, abolitionist, diplomat, US Congressman and college president, who as town clerk in Oberlin was one of the first African Americans elected to public office in the United States. Question: Which National Historic Landmark in Oberlin, Ohio was also home to the first African American that was elected to a United States Public Office?  Answer: John Mercer Langston House
Output (English): The John Mercer Langston House is a National Historic Landmark in Oberlin, Ohio.