Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : The Urban 13 was a research-sharing association originally between thirteen public urban universities, but eventually grew to include 22 institutions when it was succeeded by the Great Cities' Universities coalition in 1998.
Answer : Great Cities' Universities
A:
By what was Urban 13 replaced?