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.

I click on download on my PC. Message says 'Thank you for downloading #iTunes \nSo, where's the download?! #frustrated 
Not sad

The weather changed from sunny and bright to gloomy just in time to match my afternoon mood. 😒
Sad

I went so deep into my thoughts that I started shaking. I real deal upset myself to that point of anxiousness.

Sad