Assertion: mihrab's dome | /r/HasAspect | twelve slender ribs
Facets:
Source sentences:
text: The architectural form of the ribbed dome was further developed in the Maghreb: the central dome of the Great Mosque of Tlemcen, a masterpiece of the Almoravids built in 1082, has twelve slender ribs, the shell between the ribs is filled with filigree stucco work.