Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Ex Input:
If you need a grammar reference, this may well serve until you find a better one. It might be of greater utility if the tone wasn't vaguely condescending and pedantic, and it eschews the panoply of actual examples in favor of definitions. To wit: the 2nd person singular present perfect conjugation of "to love" results in "If you have been loved..." gives me one (singular) example but not the rationale of when to use this. The density of the text preceding the example conjugations will require your own self-study to master (if you must) the ability to spin off a subjunctive 3rd person plural present tense conjugation.The best recommendation I can offer for this is as a companion for language learners who need a quick reference for English analogs of other-language conjugations, such as when you try to conjugate "falar" and need to know which one to use.--#

Ex Output:
Negative


Ex Input:
At 60 pages,this is over-priced and not a course for adults. As basic instruction for those 10 and under, it is probably okay. For anyone who even doodles while talking on the phone- forget it!

Ex Output:
Negative


Ex Input:
There's a reason this thing is $15. It's made of ultra-cheap material and it shows from a mile. The stones look to be collected from around some highway. In addition to that, mine had an unbalanced stand which made it jiggle when playing with the sand. I returned it and will keep looking for something that is not an embarrassment when noticed by coworkers.

Ex Output:

Negative