Premise: Ramadan . also romanized as Ramazan , Ramadhan , or Ramathan ) is the ninth month of the Islamic calendar , and is observed by Muslims worldwide as a month of fasting ( Sawm ) to commemorate the first revelation of the Quran to Muhammad according to Islamic belief . While fasting from dawn until sunset , Muslims refrain from consuming food , drinking liquids , smoking , and engaging in sexual relations .
Hypothesis: Ramadan is observed by Muslims by fasting.
Label: ENTAILMENT