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: FIRST LADIES 
Clue: First Lady in the 1910s, she later rode in President Kennedy's inaugural parade

SOLUTION: edith wilson

PROBLEM: Category: NASHVILLE 
Clue: A tribute album to this late singer includes Elton John singing "Stand By Your Man"

SOLUTION: tammy wynette

PROBLEM: Category: THINK "TANK" 
Clue: On a PBS kids' show, Thomas is a title one of these

SOLUTION:
a tank engine