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: 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 am a member of a GORE-TEX product testing team and received this hat a sample while working at a gear store about 5 years ago.
That said, these hats are great. They last forever (mine doesn't show any wear and tear and my father has had one for at least 10 years) and are very functional.
I will readily admit that they aren't the most stylish thing out there, but whether you're venturing out in the rain, wind or sun, this hat does a great job of protecting you from the elements. The brim keeps rain off the face and back of you neck and shades you from the sun. The velcro patches make it easy to hold the sides up and the chin cord ensures that your hat won't run away from you.
I use mine primarily in the rain and on river trips - they are warm enough that I don't love using it in the middle of the summer when it's hot and sunny out (although I have used it for that purpose on occasion).
The Sombrero's light and packs down enough that it will easily disappear in a back pack.
All in all, a great hat if you pick function over form.

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


<think>
Answer: A: very positive