TASK DEFINITION: In this task, you are given an app review. Your task is to identify whether its sentiment is "Positive" or "Negative".
PROBLEM: Does not work OPPO Find7 Color OS 2.1.1i beta.

SOLUTION: Negative

PROBLEM: Really it's very nice for notification. .. I love it. .thanks

SOLUTION: Positive

PROBLEM: Great update! Really nice UI  and now is possible to see even hidden channels. I've missed that before. Thanks!

SOLUTION:
Positive