Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
DO NOT BELIEVE THE 3-5 YEAR LIFE EXPECTANCY!
I purchased this October 9th 2013 and installed it mid October. It failed exactly 1 year and 10 days after I bought it, just out of the warranty period. I will not purchase this again.

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