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: @jordan_grimmer If that's messin I can't wait to see #serious !! Brilliant stuff

SOLUTION: Not sad

PROBLEM: @Meruna_  as a musician, I can tell you that more people get discouraged when learning because of shitty instruments than anything else.

SOLUTION: Sad

PROBLEM: Happy birthday @aanlightyear ☹

SOLUTION:
Not sad