What river flows through Sudan and Egypt and empties into the Mediterranean sea?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q13442814', 'id': 0, 'label': 'scholarly article'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q79', 'id': 1, 'label': 'Egypt'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q1049', 'id': 2, 'label': 'Sudan'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q4918', 'id': 3, 'label': 'Mediterranean Sea'}, {'type': 'INTERNAL', 'name_': 'Q166620', 'id': 4, 'label': 'drainage basin'}, {'type': 'INTERNAL', 'name_': 'Q2887548', 'id': 5, 'label': 'Nile basin'}, {'type': 'INTERNAL', 'name_': 'Q41913731', 'id': 6, 'label': 'Low-dose quinine is effective in the treatment of chloroquine-resistant Plasmodium falciparum malaria in eastern Sudan'}, {'type': 'INTERNAL', 'name_': 'Q21127867', 'id': 7, 'label': 'New genus and two new species of driftwood hoppers (Crustacea, Amphipoda, Talitridae) from northeast Atlantic and Mediterranean coastal regions'}, {'type': 'INTERNAL', 'name_': 'Q29543629', 'id': 8, 'label': 'Short contribution: Nile flow failure at the end of the Old Kingdom, Egypt: Strontium isotopic and petrologic evidence'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q62639089', 'id': 9, 'label': 'The Nile River Basin'}], 'links': [{'name_': 'P47', 'source': 2, 'target': 1, 'label': 'shares border with'}, {'name_': 'P17', 'source': 2, 'target': 2, 'label': 'country'}, {'name_': 'P17', 'source': 5, 'target': 1, 'label': 'country'}, {'name_': 'P17', 'source': 5, 'target': 2, 'label': 'country'}, {'name_': 'P403', 'source': 5, 'target': 3, 'label': 'mouth of the watercourse'}, {'name_': 'P31', 'source': 5, 'target': 4, 'label': 'instance of'}, {'name_': 'P31', 'source': 6, 'target': 0, 'label': 'instance of'}, {'name_': 'P921', 'source': 6, 'target': 2, 'label': 'main subject'}, {'name_': 'P31', 'source': 7, 'target': 0, 'label': 'instance of'}, {'name_': 'P921', 'source': 7, 'target': 3, 'label': 'main subject'}, {'name_': 'P31', 'source': 8, 'target': 0, 'label': 'instance of'}, {'name_': 'P921', 'source': 8, 'target': 1, 'label': 'main subject'}, {'name_': 'P31', 'source': 9, 'target': 0, 'label': 'instance of'}, {'name_': 'P921', 'source': 9, 'target': 4, 'label': 'main subject'}, {'name_': 'P2860', 'source': 9, 'target': 8, 'label': 'cites work'}]}