instruction:
You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
question:
Category: AFRICA 
Clue: Its Declaration of Independence was signed in 1847 by 11 men in that nation's Providence Baptist Church
answer:
liberia


question:
Category: U.S. CITIES 
Clue: On May 24, 1844 Samuel Morse was in this city demonstrating his invention
answer:
washington, d.c.


question:
Category: PUBLISHING 
Clue: Founded in 1856, this company introduced a numbering system for U.S. highways in 1917
answer:

rand mcnally