question: What domain were the Eritrean highlands under after the decline of Aksum ?
answer: Bahr Negash ruled by the Bahr Negus
turker_answer: Bahr Negash ruled by the Bahr Negus were the domains that were the Eritrean highlands under after the decline of Aksum .
rule-based: The Eritrean highlands under after the decline of Aksum were Bahr Negash ruled by the Bahr Negus .