Task: Text Categorization
Input (English): In Pope Paul VI's text "Paenitemini," he suggested that this practice should be replaced with ways "to promote better social justice" in certain countries. On the Hindu day of Karva Chauth, married women engage in this practice to ensure their husbands' safety. A Jewish variant of this practice takes its name from an assassinated governor named Gedalia. In the first of his temptations in Matthew 6, Satan tells Jesus to end this practice. Jews are commanded to do this during the day of Tisha B'Av, while Catholics must engage in this practice on Ash Wednesday and Good Friday. Muslims engage in this practice from dawn to dusk during the month of Ramadan, For 10 points, name this religious practice that typically involves not consuming food.
Output (English): Social Science