8686
During the 1980 s , when the school was extended , further excavation revealed the remains of several round huts , hearths , a brooch , and pottery , some of which hailed from North Africa .
 location: North Africa
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: North Africa