Examine the tweet "#Spina #Bifida a #neural #tube #birth #defect where the #nervous #system &amp; #spinal #cord do not fully develop #raredisease #June #awareness" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".