Task: Question Answering
Input (English): Context: Lever House, designed by Gordon Bunshaft and Natalie de Blois (design coordinator) of Skidmore, Owings and Merrill and located at 390 Park Avenue in Midtown Manhattan, New York City, is a seminal glass-box skyscraper built in the International Style according to the design principles of Ludwig Mies van der Rohe. 
 Question: Who was the architect or designer of Lever House?
Output (English): gordon bunshaft