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: so basically i bought a pair of these sorry excuses for headphones about 5 months ago.  not only did the lower part of the headphone jack break off, it broke off IN MY IPOD, essentially ruining it, unless i want to pay some insane fee to send it off and be fixed (which i dont).  when i tried to contact sony, as soon as they realized i was inquiring about some cheap pair of headphones instead of a ps3 or one of their hdtvs, they basically disregarded my complaint, told me there was nothing they could do for me and pretty much implied that it was my own fault for not being more careful with them.  while the headphones were operational, the sound quality was decent (certainly respectable for lower end headphones) but the entire unit was EXTREMELY uncomfortable not just on top of my head but over my ears as well (some of these reviewers calling the headphones' design ideal must never have tried any other pairs).  the cord is also inexplicably long, which sounds like nitpicking, but it really got on my nerves having to constantly untangle and untie all these knots, or having to shove 5 feet of wire in my pocket so it didn't drag on the ground.  although i personally never had any problems with the actual headset breaking, its painfully evident that the swivels are very cheaply made, and i certainly wouldnt reccomend shoving these in a backpack or messenger bag, as i could easily see one of these cheap plastic beams breaking after a day in a confined space with other insecure hard objects (although at least then only the headphones would be broken and not your ipod as well). AVOID THESE PIECES OF GARBAGE LIKE A PLAGUE!

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


<think>
Answer: E: very negative