Assertion: rashidun caliphate | /r/HasProperty | led by umar ibn khattab
Facets:
value: as the second caliph
type: OTHER
Source sentences:
text: The Rashidun Caliphate (632–661) was led by Abu Bakr, then by Umar ibn Khattab as the second caliph, Uthman Ibn Affan as the third caliph, and Ali as the fourth caliph.