Question: What is the address of the building located above City Hall Station in Philadelphia, Pennsylvania? 
Sentence (from "Susquehanna–Dauphin station"): Service began at the station, formerly known as Dauphin–Susquehanna, on September 1, 1928 as part of the original segment of the Broad Street Line, which ran from City Hall Station to Olney Station.
Relevant evidence: No