TASK DEFINITION: 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.
PROBLEM: Category: ONTARIO 
Clue: The Ambassador Bridge, world's largest int'l suspension bridge, links Windsor, Ontario & this city

SOLUTION: detroit, michigan

PROBLEM: Category: SCIENCE & NATURE 
Clue: Developed by astronomer A.E. Douglass, dendrochronology determines age in this way

SOLUTION: counting tree rings

PROBLEM: Category: BOOK TITLES 
Clue: A bestseller by Jamie Ford is "Hotel on the Corner of Bitter and" this

SOLUTION:
sweet