Task: Evaluate the tweet for emotional cues and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that indicate the tweeter's state of mind.
Tweet: My encouragement today is my dog while my head is in a fog. #epicfail #depression #feelingfedup #tired #ihaveheardeverything #wondering
This tweet contains emotions: 
love, optimism, sadness