I want to know the answer to the following question:
Who is Philadelphia's greatest architect of the later 19th century?
All the background I'm provided with is that "Frank Furness is considered Philadelphia's greatest architect of the second half of the 19th century, but his contemporaries included John McArthur, Jr., Addison Hutton, Wilson Eyre, the Wilson Brothers, and Horace Trumbauer.". Is that enough to answer the question?