In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Ex Input:
Since I badly need the 4:3 ratio for FPV flying, I will keep this unit. However, the USB power supply failed after second time I inserted it. Total junk design. However, opening up the unit, the connections for the supply are pretty obvious, and I think I can fix it. If you are not good at soldering iron, stay away from this equipment like hell, there is no way it would last longer than a couple of days, and there is a clear manufacturing failure. As far as quality (video) is concerned, it seemed to be OK, I have not noticed any major problems during the half-hour I was able to test out the unit. Quality is good, 4:3, 16:9 switchable, as advertized.

Ex Output:
negative


Ex Input:
I didn’t receive this sash!! There was an envelope, and inside was a phone card,, that I DID NOT order, I want the sash for a surprise party next weekend! Very disappointed!!

Ex Output:
negative


Ex Input:
Worked for 4 months and then completely stopped working without any abuse at all. Total waste of money. I'll never buy this brand again, nor will I ever buy one from amazon again... especially now that I can't return it. I'll be buying another one, but this time I'll be going somewhere local where I can actually return something for more than 30 days...

Ex Output:

negative