Consider the emotion sadness and the tweet "Still #devastated and #sad #Tariq's #TariqLive channel is no more and #ProfessorBlackTruth as well. #YouTubeFAIL #EpicFAIL! #TariqNasheed 😢". Evaluate the intensity of this emotion in the tweet, assigning a value between 0 (least intense) and 1 (most intense).