In this task, you are given a text from tweets. Your task is to classify given tweet text into two categories: 1) positive, and 2) negative based on its content.

so happy 
positive

@darkheath Oh...*sigh* LOVED Firefly. And thought River was so cute. Wish it hadn't been cancelled. 
negative

People on the Air France flight 447 were texting there friends and families saying 'I'm afraid' and 'I love you' before it vanished..  

negative