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.

Paul Ehrlich said that humanity is a threat to all life. Such great news to start the day. If I could blush I would.
Not sad

I'm looking for a good promoter #rock #blues
Not sad

@ATTCares why do I have 2 wait 48 hours to call YOU back to cancel an order I JUST placed after already spending 2 hours on the phone?! 

Sad