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: I have used several cordless stick vacuums, including a very expensive Oreck, and this is the best one by far. The suction is very good as long as you empty it on a regular basis. The battery life is fantastic. I have a large home that is almost entirely tile and hardwood floors, and I can do a fairly complete light cleaning of everything with just one battery. I don't have any trouble at all with the removal or re-attachment of the handle as some others have complained as it is a very simple procedure (push a button and pull the handle out). The bottom line for me is having realistic expectations. This is a battery powered piece of equipment, you cannot expect it to perform like a normal vacuum. This is for everyday light cleaning - it keeps the dog hair and crumbs from taking over the house. If you want an extremely powerful replacement for your vacuum, you are going to have to get something with a cord. Otherwise, this is well worth the money and I recommend it to anyone.

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


<think>
Answer: A: very positive