Task: Text Categorization
Input (English): Mormons often engage in this activity on the first Sunday of the month, giving money saved as an offering to the church. Some Hindu women do this to boost the well-being and longevity of their husbands in an act called karwa chauth. Luther concurs with Catholic theology, saying that those taking Communion should do this the previous hour. Rules on this in Judaism ban the brushing of teeth during days where it is practiced due to water usage. For 10 points, name this activity practiced by Jews on Yom Kippur and by Muslims during the days of Ramadan.
Output (English): Social Science