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.

[EX Q]: I stayed up all night to go to my friends house early in the morning, like in 2 hours and then he fell asleep. So wtf - guess it's time to 😪
[EX A]: Sad

[EX Q]: @comicfire The thing is, it's either I be unproductive and unhappy, or deal with some videos that do badly.
[EX A]: Sad

[EX Q]: .@WotzupCapeTown - thanks for sharing! Surprise guests! @HumanJurgen &amp; visiting US Tenor Sax @CunninghamColin. #livemusic #capetown #blues
[EX A]:
Not sad