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 this knife spring assisted  opening  ?
Document: I recently traded my SOG trident tanto for my freedom in China (no joke) and was in the market for a new tanto.The steel is very high quality. Sharp and stays sharp.NOT spring assisted, you'll have to work on your wrist flicking to master opening this bad boy.The handle texture is very abrasive, prepare for ripping and major chafing if you carry this on your pant pocket (especially jeans!).
I waited a few months to review, so I could get a fuller picture. If you are concerned about this not being assisted opening, don't be. After a few hours, you can wave it open, faster than an assist in most cases. The coating on the blade wears off with medium to hard use, so much so that I ended up using steel wool and taking the black coating off the blade. If you aren't concerned with the blade staying black for long, thats probably a good thing.
This thing is a boss! sharpest knife I have ever had. Only issue I have is that the spring is very tight, and handle is very long so its a bit hard to open it. Need to give a good wrist flick with it.
Very strong! Fantastic ergonomics! Doesn't take too long to deploy blade once you flip it open with your wrist. It's my EDC knife until I'm able to purchase a top of the line spring-assist. Manage to cut myself with it a couple of times without trying telling you how sharp it comes out of the box.
It would probably have increased the price and weight but let's face it; we have been spoiled with spring assist. I want every folder to have it. However, the knife can be opened by a good flick of the wrist. Practice with it everyday and you'll have it down. I give this knife 5 stars because you really can't beat it for the price. I haven't had the coating come off mine yet, but that won't be a huge factor for me. I keep all my knives oiled, anyways.
I appreciate the notches for two fingers which really allows a firm, ergonomic grip. The cross hatching on the handle feels great and again, even with the sweatiest hands I don't think I could drop this knife. Blade opens and closes as expected. Note: it is not an assisted open so you need to use the thumb screw to flip it open.
The knife itself is pretty good I like the blade and handle, I don't like the lock and how the knife opens it is not made to open easily for one handed opening despite what any other reviews tell you and the iddy biddy pocket clip looks kind of silly.
The knife arrived on time. The package was completely intact. The knife works great opening one-handed with either hand. It is VERY sharp, as the package says. The one issue I see is that the black finish is already beginning to flake off in two spots.
As far as personal protection goes this thing intimidates with looks, but doesn't have a satisfying audible engagement as you have you use both hands to open it. Nobody looks like a bad*ss opening up a folding knife with two hands. I would be annoyed if I had paid MSRP for this thing but it is a great knife to play with and commit robbery with.
What a great knife! In my opinion It is a little bit big for Every Day Carry at my job but, if you have a job where you can carry a larger pocket knife then you can't go wrong with this knife. The knife really locks up securely. The lock was a little stiff when I got it but, after opening it and closing it a few hundred times it works great. I really feel that it is a stronger design than a liner lock.
Answer: yes