Task: Sentiment_Analysis

system
You are a helpful assistant. The assistant first thinks about the reasoning process in the mind by using Belief-Desire-Intention (BDI) framework and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively. 
Below is an instruction that describes a task. After thinking, when you finally reach a conclusion based on the customer's intention, desire and belief, clearly state the BDI thinking process within <think> </think> and then the answer within <answer> </answer> tags.


user 
Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
User Review: I began looking for knifes a few years back as it struck me that if I needed to quickly get my multitool out and deploy it's blade for emergency usage, that might not be quick or safe enough, especially if I needed to do this with one hand or with hands that were wet and/or dirty.  I thus needed one with a thumbstud as ring openers are great barehanded, but I've had some trouble with them while wearing gloves (both work gloves as well as warmth gloves).  I also needed a knife that would be comfortable enough for me to hold as my fingers are a little short for my palm size.  As I'd be carrying this as an E.D.C. (E.very D.ay C.arry) like my multitool, I didn't want it to look scary and I didn't want it to attract immediate attention since the last thing that you want to happen to you when you need to do something (like make a plastic cup out of a bottled water bottle or cut the twine off of a package) in public is to have everyone around you freak out. Now if I had been considering this as a knife for just camping, then I'd have gone with a brighter colour in case I dropped it while out rock scrambling (they offer this knife with a decent variety of handle colours and the manufacturer even offers full customization where one side can be one colour and the other another colour as well as black versions of metal parts that would normally be silver). I thus decided on the least military looking, and least eye catching combination of colours that I could find. So that meant finding one with a drop point and non-coated edge with a either black or sand coloured handles. So I got it in a rather generic build of drop-point, combination plain and serrated blade, with thumb stud, and black handles.  It's worth noting that knife is also offered with a Benchmade's BK-1 coating (a black anti-reflective and corrosion resist coating), in a western take on the Japanese tanto shape, with a ring opener, and in a plain edge--combinations of these elements can be found, but you may need to custom order from the manufacturer's site.

Here are the specs that I pulled from the site:

Blade Length: 3.45'
Blade Thickness: 0.115'
Blade Material: 154CM Stainless Steel
Blade Hardness: 58-60HRC
Liner Material: 420J stainless steel
Handle Material: Valox handle
Overall Length: 8.07'
Closed Length: 4.62'
Handle Thickness: 0.640'
Weight: 3.25oz.
Lock style: AXIS
Opener: Ambidextrous thumbstud
Clip: Black, left-right reversible, built for tip up carry

When picking up the knife I noticed quite a few things about its weight, that it's A) fairly light (though I'm used to carrying around my multitool) B) that when open the knife is balanced a hair behind the AXIS lock slide. Thus this makes this knife very easy to carry without feeling like it's a burden, but just heavy enough to remind you that it's there as well as being very easy to hold without the knife feeling too nose or handle heavy.

The knife's name is highly appropriate as everywhere you could possibly want to grip the knife there's either a chequered or ridged surface. You can even hold the knife in a scalpel grip (handy for doing some fine detail work if you decide to carve wood or cut paper with it) and still be in contact with a ridged surface. I can imagine that I'll still be able to hold on to this knife when my hands are cold and/or wet or slightly coated with a little road grease (although if possible I'd prefer them not to be covered in water or coated with road grease just in case). In fact the interesting thing is that even though the clip is found on other knives made by Benchmade, the clip is built in a manner that doesn't seem to adversely effect my grip--the part where it goes in a bit at the bottom of the clip is contoured in a way that suggests that you're supposed to lay a finger over it.  In fact during opening of the knife, the edge of the clip provides my fingertips a very nice place to hold on to while the blade swings out (if you're left handed you'll have to flip the clip to the other side of the knife for the same sort of benefit--yes you can remount it to the other side using a torx wrench).

However, the downside of the chequering on the sides of the body is that with the clip being rather new and tenacious, once it's clipped to the edge of my pocket it's a little hard to pull out. I do expect this to stop being a problem after carrying this for a while as the clip is likely to bend just a little bit outwards.

As for what the handle is made out of, I did a little looking up on Wikipedia about the material and it says that Valox is the trademarked name for a variety of polybutylene terephthalate. Apparently it's got some glass in it for extra strength (I suppose that means it's like various glass impregnated plastics--which seem to be fairly abrasion resistant), resistant to solvents, fairly well insulated against electricity, fairly heat resistant, and apparently reasonably resistant to mechanical force damage. That kind of makes the handle sound mostly indestructible in some fairly extreme conditions, but only time and usage will tell.

The knife can be opened nicely in a very controlled manner if one keeps their thumb on the thumbstud and pushes it all the way open--when done like this the click of the AXIS lock is quiet, but reassuring and thus perfect for when you don't want to scare away wildlife or people. One can also pull back on the AXIS lock slide and turn over their hand to quickly deploy the blade (the same can be done for closing the blade). However, another thing that can be done is a combination of the two; give the thumbstud a bit of a push while turning your hand over and the knife deploys about as quickly as pulling back the AXIS lock slide and flicking, but with the added advantage of being locked when it's in place.  All in all it's got very nice mechanisms that allow me to hold on to something with my off-hand while deploying the blade with my dominant hand.

The interesting thing is that the AXIS lock slide sits a little further back than it probably should when the knife is in the open and locked position. This doesn't seem to effect the strength of the lock. What I'm wondering is if this is by design so that as the knife's mechanisms wear down the lock always stays tight without play or even minor rattling. I'll have to take a look at a few more new ones and compare them to the store's demo unit.

Admittedly, I haven't put the knife fully through its paces with anything adventurous or strenuous, but I did do the arm hair shaving test and it seems to shave them pretty nicely. The blade seems all around sharp from the plain edge all the way through the serrations. I've also done a practice cut in the center of a grocery receipt and managed to cut a very clean slot about 2mm x 10mm in size without any visible tearing, so the blade can be used as a fine decent paper cutting knife when at factory sharpness.  It also seems to carve up boxes without too much trouble.  However, I don't know how long this knife will hold an edge for, how easy it is to restore the edge, or what angle I'm supposed to sharpen this knife at (folks out there seem to say that it's anywhere between 30-40 inclusive--meaning that each side is sharpened at between 15-20, though both at the same angle).

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative


assistant
Answer: A: very positive