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

Input:
Question: What wood is this bokken made of? It kind of worries me that it is not listed in the description.
Document: Got this in the mail today after much excitement, and it looks pretty awesome! The wood has no cracks/defects and the stain is a rich medium color. The bokken feels heavy and a few swings made me realize this is for real! I bought this as a security device and something to swing around with (train?) so no wood-on-wood contact. I don't know how it would perform with significant hitting, but feels solid for sure.
I think this is a great tool for sword-related training. First of all, it does not cut because it doesn't have sharp edges. Second, it looks good because it is made of &#34;pretty&#34; wood material. Also, the length, size, and weight are just right. Basically, it simulates a real sword, but it is made of wood and it doesn't cut.
I bought this item hoping I would like it use for sparring this summer in the backyard. Its I crafted-wood made of Oak and Brown, and item is enough length and width to help me maneuver in the spring time in the backyard so I can purchase the art of sword man ship. I give this item a fair recommendation with the crafted worked and the easy to hold patch wrappers cover on the bottom of the sword.
It's still a fairly cheap piece of wood, compared to an ironwood version, but at this price (it was $9.99 when I bought it) you really can't go wrong. A nice enhancement over the basic bokken. Recommended.
The wrap is glued on only on the top of the bokken and gets loose quickly. The wood under the wrap was cracked. Weight and balance was nice but it is not dojo quality. You can do much better for not much more money. This one will sit by the front door for people who ignore the no soliciting sign!
I have not used this bokken to strike other bokkens, so I cannot testify to it's strength. But given the quality of the other parts, I wouldn't expect it to hold up. There is a slight curve in the wood, which is not enough to throw off the balance, but disappointing nonetheless. The chord wrapping on the handle was very poorly done - it was very loose, and kept sliding off.
I will tell you this bokken is amazing, for sparing with other hardwood swords I would try to be careful because (personally) I'm afraid it can brake (as in the wood getting chipped away as in hitting a hard object very hard repetitively, roughly at least 20-30 times). But as a practice bokken its amazing. If you want to spar I recommend you getting a shinai.
I purchased two of these bokken back in July 2010 and have never regretted the purchase. First of all, the price is right at $10 a piece. Second, the wood is heavy and durable; mine have withstood some fairly heavy blows and have only been dented, not cracked or splintered. Third, the cord-wrapped handle really helps to get a good grip while swinging the bokken in practice.
The bokken itself (wood parts) are decent with few blemishes and no cracks or major chips. Everything else that goes onto the bokken is terrible.First, the tsuba was a light caramel color, not a dark color (almost black) as indicated in the pictures. The slot on the tsuba is cut completely arbitrarily, such that the hole in no way matches the cross section of the bokken. The hole is too big, wrongly shaped, and hence will slide and rattle.
very well made boken, cord wrapped handle is nice and feels more like a real katana would be. The boken is constructed of oak with a dark stained finish
Answer: yes