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: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
User Review: I received my Vista about two weeks ago and was excited to get it. After playing with the unit for about 30 minutes I was unable to get a satalite signal. Finally after I got in the middle of the field it picked up on 3 satalites. Thinking that this was a setup thing, proceeded to use the unit trailriding, in the car, walking around. Was pretty disappointed in the reception in all three places, satalite signal was being lost and accuired. One of the biggest disadvantages was if you have to turn on the unit close to trees it can't find a signal, even if the trees are 30 yards away and only 20 feet high and your standing in a opening.  Now other than reception this unit does have an easy to use interface with some really cool features like the altitude, time stopped, average speed etc. But to top off the review I think for the money this unit is not worth it. Garmin needs to rethink there reception issue big time. I sent the unit back and looking for a better one.

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


<think>
Answer: D: negative