In this task, you are given an app review. Your task is to identify whether its sentiment is "Positive" or "Negative".
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Question: ?????????? Flawless I've been looking for something like this found it works great for my LG Premiere

Answer: Positive

Question: Xperia Z Tablet Grabbed the app to play around with RTL SDR. Better signal clarity than SDR# on my laptop. Very happy so far with $15 total investment. Dongle powered up straight from the tablet. Don't have a HackRF to test.

Answer: Positive

Question: Don't worked

Answer:
Negative