In this task, you're given a review from Amazon's food products. Your task is to generate a short summary of the given review in the input. Note that you don't need to write a complete sentence as a summary.

[EX Q]: These have an artificial sweetener aftertaste. Not pleasant. I would not purchase them again. This the first Kcup hot chocolate I've tried, I'll keep looking.
[EX A]: Aftertaste

[EX Q]: The last bag of these I got from Amazon had a lot of hollow bisquits.  It was weird ......  they just weren't solid like they should be.  I'm going to switch to another brand of grain-free dog bisquits now as there's no sense in paying for something I'm not getting (and these are expensive!)  And if it wasn't for the good packaging I'd wonder if bugs had gotten to them..... but I don't think that's possible.
[EX A]: Some of the bisquits were hollow-not solid as they should be

[EX Q]: This product serves me well as a source of electrolytes during and after a long run or bike ride. I have tried all of the flavors but really do like the grapefruit flavor... no after-taste and I actually like the slight carbonation. I use other Hammer products and really like their whole product line.
[EX A]:
great source of electrolytes