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: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
User Review: I bought these headphones early (October 2014) as a Christmas 2014 present for my 10-year-old son, who loves music and is getting involved in amateur movie making and video editing.  His ears are still too small for most earbuds, and several older cheap pairs of headphones around the house were only halfway working.  I wanted him to have something decent that would block out ambient outside noise, and be comfortable for him to wear around the house or in the car.  These headphones have fit those requirements at their core... great sound quality (when working) and quite comfortable with effective blocking of most regular-volume ambient noise.  Not bad for $15, except for the nearly immediate problem I experienced that invalidates all the positive features...

(Side note: As others have mentioned, these headphones have a LONG cord compared to many other consumer-level headphones.  It's a decent feature I suppose for studio-type use, but often gets in the way when the mp3 player / phone / computer / other device is nearby, like in your lap or pocket.  The long cord hangs down/around and must be tucked or rolled up some other way.  This doesn't relate to my star rating, but a "feature" that might be overlooked otherwise.)

A week after Christmas, I was "testing out" the headphone (as parents often do with their kids' electronic goodies) and noticed the sound was cutting out a bit.  I could fiddle with the cord connection to my laptop, and sound would return.  At the time, I blamed this on my laptop... it is an older computer and I figured the headphone input was loose in some way.  I should have tested more.

Now three weeks after Christmas, my son informed me the other day (after using the headphones after a long car ride) that he had to twist/spin/manipulate the headphone cord connector to get any sound at all.  I tested extensively and unfortunately found this to be true.  It is apparent that the internal connections, probably in the form of solder joints within the connector, are weak and failing after three weeks of very light use.

Usually the "early bird gets the worm" but in this case, ordering these headphone 2 months before Christmas hurt me.  I'm beyond the Amazon return window, and I'm still reading the fine print but I believe the Koss warranty is 90 days from purchase... so it's gone too.  Even if they would cover a warranty repair, YOU pay to ship them out and Koss requires a $9.00 payment to cover their return shipping.  Obviously by then I can just buy a brand new pair.  However, I don't plan to do that for a product that is cheaply manufactured to the point that it is defective soon after arrival.

The only silver lining here is that I found a lot of helpful Youtube videos on replacing the headphone connection, rather than throwing the headphones out.  I should be able to complete this repair for under $5 with a new connector and a soldering iron (which I already own but will need some practice using).  Still, I didn't expect to need to spend more money and time to make these nearly new headphones work properly.

Yours may be fine, but be aware of this potential problem.  This would have been a 4-4.5 star rating, if not for the cheap connection that reduced it to a useless, but fixable, 2-star product.

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


assistant
Answer: D: negative