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: is it bladed on both sides of the knifer or just one side
Document: Not bad quality knives. One of the tips bent on a piece of wood. But they are not bad for the price.
One of the knife blades broke within the first few days of my son throwing them into a wood block.
Balance is good, the knife is solid. Had these 3 for a couple months and and had only one broken tip. I'll probably buy more soon.
The knives that I ordered came in a pretty little box. That was the highlight of the purchase. One was bent, so it couldn't be thrown properly, and the other two's tips came off after a day.
Nice set of knifes, easy to throw, good choice for the price. One of the tips has broken after a week of throwing but I sharpened it back with a file pretty easy.
Never owned a set of throwing knifes before. I like the size, weight, and especially the balance. After one youtube video on how to throw knifes I was sticking them everytime. Good price, well made.
Once, I hit a squirrel mid-jump and was even able to retrieve my RC-1793B because I impailed the little hellcritter to a River Birch. An added bonus with these knives: butt-end loop to attach rope. I ran 40 feet of rope to each of these so I could use them like the rope darts in Assassin's Creed. One word:  JACKPOT. BladesUSA - you have a customer for life. ;)
These knives were the first throwing knives I have ever bought. That being said I have had these for around 4 months now and only one has a chip (I threw it and it hit cement) other then that though these knives look the look the same as when I first got them! They also throw very well, for never throwing a knife in my life I was surprised at how I could hit my target 10ft away after the first half hour of trying!
These were the first throwing knives I've ever owned and as far as every goes I was very satisfied. Only avoid buying if you will be throwing outside as the all black knives can be very difficult to find if you miss the target, I lost one within the first hour of throwing. I've missed many times and had them land on rocks and after a month there is barely a chip, I'm sure the next set will hold up better now that I'm a little more accurate. Great deal for the price.
Arrived in good timing I ordered two sets of these there perfect length an weight very pointy but nort sharp on the sides but with a little work they'll be sharp enough to slice there perfect for throwing well made tho says china
Answer: no