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: 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: Stellar sound quality.  Full, tight lows that punch when they should, and stay boom-free when they shouldn't.  Warm mids.  Bright, clean high without sounding tinny.  I purchased these at a brick and mortar in 2010 (it is May 2016 today).  They are just starting to crap out.  The sound is still spectacular, but they don't take the volume they once could.  Bass at high volumes is starting to distort.  I am OK with this - for the shear hours of use these got over the last 6 years at $100, they have paid for themselves and I will consider replacing them with another Sony set.

2 complaints.  One - after 3 years the "pleather" coating on the ear cushions started to flake off.  After 4 years, the cushions became unusable, and I replaced them with the cushions of a junk set of Turtle Beach gaming 'phones my son tossed out.  See photo.  Two - some complain of the weak wires at the driver cups failing.  If you are not careful, the pivot will pinch the wires on both sides where the head band "yoke" meets the driver cups.  See photo.  I have been careful over the years, and the wires have survived, but I do think it is a design flaw.  I will definitely look for this flaw when choosing my next set.

These have driven classic rock, metal, jazz and swing over the years, in both a listening chair, behind a drum kit, and even on stage.  Once again, in my mind 6 years for $100 is definitely fair considering the hours these babies have logged.

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


<think>
Answer: B: positive