Assertion: castle's importance | /r/HasProperty | held by portuguese factory
Facets:
value: at arguim island
type: LOCATION
value: on the southern edge of mauritania
type: LOCATION
value: previously
type: TEMPORAL
Source sentences:
text: São Jorge da Mina took on the military and economic importance that had previously been held by the Portuguese factory at Arguim Island on the southern edge of Mauritania.