Conversation so far:
which was a state first arkansas or kansas
Arkansas was admitted to the Union on June 15, 1836. Kansas was admitted to the Union on January 29, 1861
what is the capital of Arkansas?
The capital of Arkansas is Little Rock.
who are some notable people from Little Rock?
Notable people from Little Rock include Bill Clinton, Sheryl Underwood, and Douglas MacArthur.

Question: what are the sister cities of the capital?
Self-contained rewrite: what are the sister cities of Little Rock?