Assess the level of sadness present in the following tweet: "#FF \n\n@The_Family_X \n\n#soul #blues &amp; #rock #band\n\n#music from the #heart\n\nWith soul &amp; #passion \n\nXx 🎶 xX". Provide a real number between 0 and 1, with 0 representing the least intensity and 1 representing the highest intensity.
0.250