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.

[EX Q]: Category: VIVA MEXICO! 
Clue: President from 2000 to 2006, this "sly" guy had formerly been president of Coca Cola de Mexico
[EX A]: fox

[EX Q]: Category: VERSE CASE SCENARIO 
Clue: This Chilean poet wrote, "I crave your mouth, your voice, your hair"
[EX A]: neruda

[EX Q]: Category: ROCK YOUR WORLD 
Clue: Dacite is volcanic rock characterized by the presence of this common form of silicon dioxide
[EX A]:
quartz