Assertion: empire's area | /r/HasProperty | the frontier
Facets:
value: between mongol invaders
type: LOCATION
value: for the next 30 years
type: TEMPORAL
value: between the mamluks of egypt
type: LOCATION
Source sentences:
text: For the next 30 years, the area was the frontier between Mongol invaders (occasional Crusader allies) and the Mamluks of Egypt.