TASK DEFINITION: In this task you are given a tweet. You must judge whether the author of the tweet is sad or not. Label the instances as "Sad" or "Not sad" based on your judgment. You can get help from hashtags and emojis, but you should not judge only based on them, and should pay attention to tweet's text as well.
PROBLEM: Got a #serious #hyper #predator #heckler situation over here

SOLUTION: Sad

PROBLEM: Waiting for the 2000 conference call to start. Good time to cruise around Twitter #disapointed

SOLUTION: Sad

PROBLEM: A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty. \n― Winston S. Churchill #quote

SOLUTION:
Not sad