Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: #Spina #Bifida a #neural #tube #birth #defect where the #nervous #system &amp; #spinal #cord do not fully develop #raredisease #June #awareness
This tweet contains emotions: 
fear