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:
Works beautifully and so much easier than the sharpening stone that I have! You may see some reviews claiming that their knife dulls in just a few days afterwards - that's the sign of an inferior knife and has nothing to do with the sharpener. If you have a decent knife and you hone it on a knife steel every day to keep it aligned, just sharpen with this guy twice a year (or as needed), and you will be good to go.

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