Task: Text Categorization
Input (English): This city has a six hundred year old Orloj, or astronomical clock, on its Old Town City Hall. The Ginger Rogers and Fred Astaire-inspired Dancing House was built in this city by architect Frank Gehry. A bridge in this city with 30 statues along its sides was started in 1357 and became known as the Charles Bridge. That bridge crosses the Vltava River (VOL-tah-vah) in this city. For 10 points, name this city in Eastern Europe that is both the largest in and the capital city of the Czech Republic.
Output (English): Social Science