Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Category: HOMOPHONIC PAIRS 
Clue: It's a notation on a percussion store to clash
Solution: cymbal symbol
Reason: "Cymbal" and "symbol" both have the same pronunciations but different meanings, hence they are homophonic pairs. A symbol is the notation and a cymbal is a percussion instrument that clashes and rings.

Now, solve this instance: Category: TEXTILES 
Clue: This synthetic material is named for the sports venue where it was installed in 1966
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
astroturf