Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: This was asked before, but as of today (March 10, 2014): Are the basketballs being shipped with Adam Silver's signature or David Stern's? Thanks!
Document: This item ordered as a gift for a male friend. He seemed very pleased- wanted one bearing the David Stern signature while still available-said there is a new NBA commissioner and official balls will begin bearing his signature.
I was Academy Sports earlier today and walked over to look at the basketballs, just to see if the retailer carried it and the cost in store. Well, this store had THIS ball mixed in with others and was selling it as a Games Series Composite leather ball  ($34.99).
Initially the price difference was 20 dollars but now you can find the difference to be $5-$10. I think they are close in quality but the ZK-Pro seems a bit bouncier and provides longer rebounds, which I find to be a sign of the ball being too spongy. I find this to be true with the Wilson basketballs.
Yes this ball is hard to the touch when you first purchase it but it just takes a few months to wear in, I really like this basketball over the synthetic basketballs that are very common today, it just feels right. It has a good weight and size. some have said it feels a bit big but I don't think so at all. It also gets for grip on the ball when it gets a bit of sweat on it.
Most basketballs today will not bounce consistently straight when dropped vertically . This one, though more expensive, was no exception. I thought buying a top class ball I could expect to be 100% perfectly round at required pressure. Not the case. Sometimes bounces straight sometimes sideways 5degrees. Makes it confusing to dribble if you are a avg adult user.
This came in great shape with an excellent price! Very much better than the one I ordered from the NBA Store, which looked as if it had been used and then shipped out to me!
Most synthetic indoor balls are going to feel tacky, soft, and have different ranges of sponginess. The nba game ball is not as tacky (I am 5' 10" and my hands are not large at all but I can still palm the game ball), is not soft, and is not very spongy.
For me, it took a couple of years, but I don&#8217;t play in a gym as often. Put some Lexol on it (leather conditioner), and just keep playing. In the 10+ years I&#8217;ve owned the ball, only once has it been chosen as a game ball&#8230; lol. Mind you, this was after it was broken-in already.
No one, out of over 50 people I have given this ball, actually enjoyed the feel or the shot path they had with this ball. Everyone who I have given this ball to shot their first 10 shots at least short. This is back to the fact that, they do not posses and have not trained to posses the muscles adequate that this ball requires.
The ball was lopsided!!! Not to mention the cheesy color and feel of the synthetic leather was laughable. One more thing, the company shipped the wrong basketball the first time and then shipped a lopsided ball to me. Since I missed their deadline for return on the second shipment, I was not reimbursed my full amount and took a twenty dollar hit. Do not purchase this basketball, there are much better ones on the market. The TF-1000 is better than this ball by far.
Answer: yes