Task: Sentiment_Analysis
user: 

 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.  /nFor the BDI reasoning process, (1) Based on the User Review, starting with "customer believes", list the user's beliefs; then, based on the User Review and the definition of Reiss's 16 basic desires theory, list the user's desires; next, based on the listed beliefs, desires and User Review, starting with "customer intends", list the intentions; (2) Finally, based on the generated beliefs, desires and intentions, construct logically BDI reasoning process, and select the correct answer based on the BDI reasoning process and input. /nThe definition of Reiss's 16 Basic Desires Theory: 1. Acceptance - the need to be appreciated 2. Curiosity, the need to gain knowledge 3. Eating, the need for food 4. Family, the need to take care of one’s offspring 5. Honor, the need to be faithful to the customary values of an individual’s ethnic group, family or clan 6. Idealism, the need for social justice 7. Independence, the need to be distinct and self-reliant 8. Order, the need for prepared, established, and conventional environments 9. Physical activity, the need for work out of the body 10. Power, the need for control of will 11. Romance, the need for mating or sex 12. Saving, the need to accumulate something 13. Social contact, the need for relationship with others 14. Social status, the need for social significance 15. Tranquility, the need to be secure and protected 16. Vengeance, the need to strike back against another person/nNow the user gives an instruction that describes a task and ask you write a response that appropriately completes the request. After thinking, when you finally reach a conclusion, clearly state the BDI thinking process within <think> </think> firstly and then the answer (i.e., answer only letters in options) within <answer> </answer> tags.
Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
User Review: My car's 6 CD changer was intermittently losing and skipping sound in the left channel.  Because the right channel remained OK I did not think it might be a dirt or cleaning issue.  I figured both left and right channels should be affected.  I lamented over my player for weeks because I could ill-afford whatever the cost might have been to even have a tech check out a fancy Bose CD player embedded in the dashboard of a car.  I gradually listened to my player less and less because knowing the sound problem just made me more sensitive to the imperfections when they occurred. Finally I figured, what have I got to lose just to find out if this is a "dirt" problem?  $8 bucks compared to all other alternatives was a small price to pay. Hola macarola...I'll be darned if this disc didn't cure my player immediately! I wish I had given this thing a shot a lot sooner.  Technically there was problem though.  The instructions say the CD has sound.  It's supposed to alert you when it's done cleaning or whatever.  My product produced no sound at any time.  I inserted it into my player and my dash display simply blinked indicating a playing disc. It ran, and ran, and ran.  It never alerted me in any way that the process was over nor did it stop running on its own.  I simply had to eject it. I deducted one star only because of this "technicality".

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


<think>
Answer: B: positive