Question: Which holidays are observed by members of the religion whose notable figure is Muhammad in Islam?
Answer(s):
answer: Eid al-Fitr Eve
answer: Eid-Ul-Adha Eve
answer: Eid al-Adha
answer: Lailat al Mi'raj
answer: Nuzul Al-Quran
answer: Eid al-Fitr
answer: Day of Arafat
answer: Day of Ashura
answer: Mourning of Muharram
answer: Laylat al-Qadr
answer: Barat Night
answer: Mawlid
answer: Ramadan
answer: Islamic New Year
answer: Night of Wishes

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:religion.religion.notable_figures ns:m.04s9n . 
?c ns:religion.religion.holidays ?x .
}