Question: What river divides the country which was home to Anerastia?
Sentence (from "Sudan"): The Sudan or Sudan ( , ; Arabic: السودان‎ ‎ "as-Sūdān") also known as North Sudan since South Sudan's independence and officially the Republic of the Sudan (Arabic: جمهورية السودان‎ ‎ "Jumhūriyyat as-Sūdān"), is a country in Northern Africa.
Relevant evidence: Yes