Assertion: legend | /r/HasProperty | key part
Facets:
Source sentences:
text: The legend was a key part of developing clear cultural identity in Borgu and Kebbi as they resisted Songhai and Fulani dominance to the north.
text: The legend was a key piece of evidence in a number of Hamitic historical theories which argued that the political development of societies in sub-Saharan Africa was the result of contacts with societies from the Middle East (namely Egypt, Rome, and the Byzantine Empire).