Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: how may liters is a large pro performance backpack?
Document: It's a couple of years old now and still looks as good as the day it arrived. Big enough for meets, can fit multiple towels plus suits, caps and goggles. Even room for light clothes for the ride home. I think we have 3 or 4 speedo backpacks in the house and have never had a problem with any of them breaking or ripping or showing any wear and tear. Surprisingly tough yet lightweight and pretty.
Answer: no