TASK DEFINITION: In this task, you are given an app review. Your task is to identify whether its sentiment is "Positive" or "Negative".
PROBLEM: Doesn't show up at all

SOLUTION: Negative

PROBLEM: Very useful while driving

SOLUTION: Positive

PROBLEM: Does what it says on the tin. I'm migrating my desktop  netbook and phone to Quassel.

SOLUTION:
Positive