Handle situations where user has no positive or negative words

[tra38]

Sample blog text:
"If I ever wanted to learn more about the world, I would head straight to the twitter account of NicholasStelter and read the amazing tweets that are contained there. NicholasStelter fanatically cares about the idea behind New Blog Post. NicholasStelter fanatically enjoys the concept of CHI DBC. https://t.co/eGX8FqMzya. NicholasStelter fanatically dislikes . NicholasStelter is a very accommodating fellow who you should follow. I have learned a lot from studying NicholasStelter's insights, and you too can benefit as well."

Turns out that AlchemyAPI did not find any negative terms for NicholasStelter. So I may need to write some code to handle this edge case.