Please determine the intensity of the emotion sadness in the tweet "Lament a \nsaddened heart,\nso far &amp; \nyet so near,\nthe years so\ntough &amp; scarred,\nthis lonesome\nroad,\nstill feared! #depression \n\n#poetry #poem". Provide a score between 0 and 1, where 0 means very low intensity and 1 means very high intensity.
0.812